diff --git a/enabler/src/de/schildbach/pte/AvvAachenProvider.java b/enabler/src/de/schildbach/pte/AvvAachenProvider.java
index a5315f70..e4aa71b3 100644
--- a/enabler/src/de/schildbach/pte/AvvAachenProvider.java
+++ b/enabler/src/de/schildbach/pte/AvvAachenProvider.java
@@ -35,11 +35,15 @@ public class AvvAachenProvider extends AbstractHafasClientInterfaceProvider {
             Product.BUS, Product.ON_DEMAND, Product.FERRY };
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"AVV_AACHEN\",\"type\":\"AND\"}";
 
-    public AvvAachenProvider(final String jsonApiAuthorization) {
+    public AvvAachenProvider(final String apiAuthorization) {
+        this(DEFAULT_API_CLIENT, apiAuthorization);
+    }
+
+    public AvvAachenProvider(final String apiClient, final String apiAuthorization) {
         super(NetworkId.AVV_AACHEN, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.16");
-        setApiClient(DEFAULT_API_CLIENT);
-        setApiAuthorization(jsonApiAuthorization);
+        setApiClient(apiClient);
+        setApiAuthorization(apiAuthorization);
     }
 
     @Override
diff --git a/enabler/src/de/schildbach/pte/AvvAugsburgProvider.java b/enabler/src/de/schildbach/pte/AvvAugsburgProvider.java
index 170e0acb..3933fad2 100644
--- a/enabler/src/de/schildbach/pte/AvvAugsburgProvider.java
+++ b/enabler/src/de/schildbach/pte/AvvAugsburgProvider.java
@@ -33,12 +33,16 @@ public class AvvAugsburgProvider extends AbstractHafasClientInterfaceProvider {
             Product.SUBWAY, Product.TRAM, Product.ON_DEMAND };
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"DB-REGIO-AVV\",\"v\":\"100\",\"type\":\"AND\",\"name\":\"RegioNavigator\"}";
 
-    public AvvAugsburgProvider(final String jsonApiAuthorization) {
+    public AvvAugsburgProvider(final String apiAuthorization) {
+        this(DEFAULT_API_CLIENT, apiAuthorization);
+    }
+
+    public AvvAugsburgProvider(final String apiClient, final String apiAuthorization) {
         super(NetworkId.AVV_AUGSBURG, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.18");
         setApiExt("DB.R16.12.a");
-        setApiClient(DEFAULT_API_CLIENT);
-        setApiAuthorization(jsonApiAuthorization);
+        setApiClient(apiClient);
+        setApiAuthorization(apiAuthorization);
     }
 
     private static final String[] PLACES = { "Augsburg (Bayern)", "Augsburg" };
diff --git a/enabler/src/de/schildbach/pte/BvgProvider.java b/enabler/src/de/schildbach/pte/BvgProvider.java
index 7b614167..311b99ee 100644
--- a/enabler/src/de/schildbach/pte/BvgProvider.java
+++ b/enabler/src/de/schildbach/pte/BvgProvider.java
@@ -46,12 +46,16 @@ public final class BvgProvider extends AbstractHafasClientInterfaceProvider {
             Product.FERRY, Product.HIGH_SPEED_TRAIN, Product.REGIONAL_TRAIN, Product.ON_DEMAND, null, null };
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"BVG\",\"type\":\"AND\"}";
 
-    public BvgProvider(final String jsonApiAuthorization) {
+    public BvgProvider(final String apiAuthorization) {
+        this(DEFAULT_API_CLIENT, apiAuthorization);
+    }
+
+    public BvgProvider(final String apiClient, final String apiAuthorization) {
         super(NetworkId.BVG, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.18");
         setApiExt("BVG.1");
-        setApiClient(DEFAULT_API_CLIENT);
-        setApiAuthorization(jsonApiAuthorization);
+        setApiClient(apiClient);
+        setApiAuthorization(apiAuthorization);
         setStyles(STYLES);
     }
 
diff --git a/enabler/src/de/schildbach/pte/CmtaProvider.java b/enabler/src/de/schildbach/pte/CmtaProvider.java
index 6888128a..1b6ece9f 100644
--- a/enabler/src/de/schildbach/pte/CmtaProvider.java
+++ b/enabler/src/de/schildbach/pte/CmtaProvider.java
@@ -34,10 +34,14 @@ public class CmtaProvider extends AbstractHafasClientInterfaceProvider {
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"CMTA\",\"type\":\"AND\"}";
 
     public CmtaProvider() {
+        this(DEFAULT_API_CLIENT);
+    }
+
+    public CmtaProvider(final String apiClient) {
         super(NetworkId.CMTA, API_BASE, PRODUCTS_MAP);
         setTimeZone("America/Chicago");
         setApiVersion("1.14");
         setApiExt("SBB.TZT.1");
-        setApiClient(DEFAULT_API_CLIENT);
+        setApiClient(apiClient);
     }
 }
diff --git a/enabler/src/de/schildbach/pte/DbProvider.java b/enabler/src/de/schildbach/pte/DbProvider.java
index a7697659..5cca12cb 100644
--- a/enabler/src/de/schildbach/pte/DbProvider.java
+++ b/enabler/src/de/schildbach/pte/DbProvider.java
@@ -46,10 +46,14 @@ public final class DbProvider extends AbstractHafasClientInterfaceProvider {
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"DB\",\"v\":\"16040000\",\"type\":\"AND\",\"name\":\"DB Navigator\"}";
 
     public DbProvider(final String apiAuthorization, final byte[] salt) {
+        this(DEFAULT_API_CLIENT, apiAuthorization, salt);
+    }
+
+    public DbProvider(final String apiClient, final String apiAuthorization, final byte[] salt) {
         super(NetworkId.DB, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.15");
         setApiExt("DB.R18.06.a");
-        setApiClient(DEFAULT_API_CLIENT);
+        setApiClient(apiClient);
         setApiAuthorization(apiAuthorization);
         setRequestChecksumSalt(salt);
     }
diff --git a/enabler/src/de/schildbach/pte/DsbProvider.java b/enabler/src/de/schildbach/pte/DsbProvider.java
index 4f1715e5..98c4dec8 100644
--- a/enabler/src/de/schildbach/pte/DsbProvider.java
+++ b/enabler/src/de/schildbach/pte/DsbProvider.java
@@ -37,11 +37,15 @@ public class DsbProvider extends AbstractHafasClientInterfaceProvider {
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"DK\",\"type\":\"AND\"}";
 
     public DsbProvider(final String apiAuthorization) {
+        this(DEFAULT_API_CLIENT, apiAuthorization);
+    }
+
+    public DsbProvider(final String apiClient, final String apiAuthorization) {
         super(NetworkId.DSB, API_BASE, PRODUCTS_MAP);
         setApiEndpoint("iphone.exe");
         setApiVersion("1.15");
         setApiExt("DK.9");
-        setApiClient(DEFAULT_API_CLIENT);
+        setApiClient(apiClient);
         setApiAuthorization(apiAuthorization);
     }
 
diff --git a/enabler/src/de/schildbach/pte/InvgProvider.java b/enabler/src/de/schildbach/pte/InvgProvider.java
index 58e305b0..13421a8e 100644
--- a/enabler/src/de/schildbach/pte/InvgProvider.java
+++ b/enabler/src/de/schildbach/pte/InvgProvider.java
@@ -37,9 +37,13 @@ public class InvgProvider extends AbstractHafasClientInterfaceProvider {
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"INVG\",\"type\":\"AND\"}";
 
     public InvgProvider(final String apiAuthorization, final byte[] salt) {
+        this(DEFAULT_API_CLIENT, apiAuthorization, salt);
+    }
+
+    public InvgProvider(final String apiClient, final String apiAuthorization, final byte[] salt) {
         super(NetworkId.INVG, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.16");
-        setApiClient(DEFAULT_API_CLIENT);
+        setApiClient(apiClient);
         setApiAuthorization(apiAuthorization);
         setRequestMicMacSalt(salt);
         setStyles(STYLES);
diff --git a/enabler/src/de/schildbach/pte/LuProvider.java b/enabler/src/de/schildbach/pte/LuProvider.java
index a361a804..64684011 100644
--- a/enabler/src/de/schildbach/pte/LuProvider.java
+++ b/enabler/src/de/schildbach/pte/LuProvider.java
@@ -36,9 +36,13 @@ public class LuProvider extends AbstractHafasClientInterfaceProvider {
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"CDT\",\"type\":\"AND\"}";
 
     public LuProvider(final String apiAuthorization) {
+        this(DEFAULT_API_CLIENT, apiAuthorization);
+    }
+
+    public LuProvider(final String apiClient, final String apiAuthorization) {
         super(NetworkId.LU, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.18");
-        setApiClient(DEFAULT_API_CLIENT);
+        setApiClient(apiClient);
         setApiAuthorization(apiAuthorization);
     }
 
diff --git a/enabler/src/de/schildbach/pte/NasaProvider.java b/enabler/src/de/schildbach/pte/NasaProvider.java
index 511c5d01..d9476356 100644
--- a/enabler/src/de/schildbach/pte/NasaProvider.java
+++ b/enabler/src/de/schildbach/pte/NasaProvider.java
@@ -36,9 +36,13 @@ public class NasaProvider extends AbstractHafasClientInterfaceProvider {
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"NASA\",\"type\":\"AND\"}";
 
     public NasaProvider(final String apiAuthorization) {
+        this(DEFAULT_API_CLIENT, apiAuthorization);
+    }
+
+    public NasaProvider(final String apiClient, final String apiAuthorization) {
         super(NetworkId.NASA, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.15");
-        setApiClient(DEFAULT_API_CLIENT);
+        setApiClient(apiClient);
         setApiAuthorization(apiAuthorization);
     }
 
diff --git a/enabler/src/de/schildbach/pte/NvvProvider.java b/enabler/src/de/schildbach/pte/NvvProvider.java
index 68efc05d..09eaee93 100644
--- a/enabler/src/de/schildbach/pte/NvvProvider.java
+++ b/enabler/src/de/schildbach/pte/NvvProvider.java
@@ -36,10 +36,14 @@ public class NvvProvider extends AbstractHafasClientInterfaceProvider {
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"NVV\",\"type\":\"AND\"}";
 
     public NvvProvider(final String apiAuthorization) {
+        this(DEFAULT_API_CLIENT, apiAuthorization);
+    }
+
+    public NvvProvider(final String apiClient, final String apiAuthorization) {
         super(NetworkId.NVV, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.18");
         setApiExt("NVV.6.0");
-        setApiClient(DEFAULT_API_CLIENT);
+        setApiClient(apiClient);
         setApiAuthorization(apiAuthorization);
         httpClient.setTrustAllCertificates(true);
     }
diff --git a/enabler/src/de/schildbach/pte/OebbProvider.java b/enabler/src/de/schildbach/pte/OebbProvider.java
index 847969f1..f646e081 100644
--- a/enabler/src/de/schildbach/pte/OebbProvider.java
+++ b/enabler/src/de/schildbach/pte/OebbProvider.java
@@ -38,9 +38,13 @@ public class OebbProvider extends AbstractHafasClientInterfaceProvider {
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"OEBB\",\"type\":\"AND\"}";
 
     public OebbProvider(final String apiAuthorization) {
+        this(DEFAULT_API_CLIENT, apiAuthorization);
+    }
+
+    public OebbProvider(final String apiClient, final String apiAuthorization) {
         super(NetworkId.OEBB, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.16");
-        setApiClient(DEFAULT_API_CLIENT);
+        setApiClient(apiClient);
         setApiAuthorization(apiAuthorization);
     }
 
diff --git a/enabler/src/de/schildbach/pte/OoevvProvider.java b/enabler/src/de/schildbach/pte/OoevvProvider.java
index d5962d4a..aeaa7dc7 100644
--- a/enabler/src/de/schildbach/pte/OoevvProvider.java
+++ b/enabler/src/de/schildbach/pte/OoevvProvider.java
@@ -38,10 +38,14 @@ public class OoevvProvider extends AbstractHafasClientInterfaceProvider {
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"VAO\",\"l\":\"vs_ooevv\",\"type\":\"AND\"}";
 
     public OoevvProvider(final String apiAuthorization) {
+        this(DEFAULT_API_CLIENT, apiAuthorization);
+    }
+
+    public OoevvProvider(final String apiClient, final String apiAuthorization) {
         super(NetworkId.OOEVV, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.18");
         setApiExt("VAO.6");
-        setApiClient(DEFAULT_API_CLIENT);
+        setApiClient(apiClient);
         setApiAuthorization(apiAuthorization);
         httpClient.setSslAcceptAllHostnames(true);
     }
diff --git a/enabler/src/de/schildbach/pte/SeProvider.java b/enabler/src/de/schildbach/pte/SeProvider.java
index 1ab0c4ed..844b7b9d 100644
--- a/enabler/src/de/schildbach/pte/SeProvider.java
+++ b/enabler/src/de/schildbach/pte/SeProvider.java
@@ -38,11 +38,15 @@ public class SeProvider extends AbstractHafasClientInterfaceProvider {
             Product.FERRY, Product.ON_DEMAND /* Taxi */ };
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"SAMTRAFIKEN\",\"type\":\"AND\"}";
 
-    public SeProvider(final String jsonApiAuthorization) {
+    public SeProvider(final String apiAuthorization) {
+        this(DEFAULT_API_CLIENT, apiAuthorization);
+    }
+
+    public SeProvider(final String apiClient, final String apiAuthorization) {
         super(NetworkId.SE, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.18");
-        setApiClient(DEFAULT_API_CLIENT);
-        setApiAuthorization(jsonApiAuthorization);
+        setApiClient(apiClient);
+        setApiAuthorization(apiAuthorization);
     }
 
     private static final Pattern P_SPLIT_NAME_PAREN = Pattern.compile("(.*) \\((.{3,}?) kn\\)");
diff --git a/enabler/src/de/schildbach/pte/ShProvider.java b/enabler/src/de/schildbach/pte/ShProvider.java
index 6277564f..eed153e1 100644
--- a/enabler/src/de/schildbach/pte/ShProvider.java
+++ b/enabler/src/de/schildbach/pte/ShProvider.java
@@ -39,9 +39,13 @@ public class ShProvider extends AbstractHafasClientInterfaceProvider {
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"NAHSH\",\"type\":\"AND\"}";
 
     public ShProvider(final String apiAuthorization) {
+        this(DEFAULT_API_CLIENT, apiAuthorization);
+    }
+
+    public ShProvider(final String apiClient, final String apiAuthorization) {
         super(NetworkId.SH, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.18");
-        setApiClient(DEFAULT_API_CLIENT);
+        setApiClient(apiClient);
         setApiAuthorization(apiAuthorization);
         setStyles(STYLES);
     }
diff --git a/enabler/src/de/schildbach/pte/SncbProvider.java b/enabler/src/de/schildbach/pte/SncbProvider.java
index b5463032..d3da45ed 100644
--- a/enabler/src/de/schildbach/pte/SncbProvider.java
+++ b/enabler/src/de/schildbach/pte/SncbProvider.java
@@ -36,11 +36,15 @@ public class SncbProvider extends AbstractHafasClientInterfaceProvider {
             null, null, null };
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"SNCB\",\"type\":\"AND\"}";
 
-    public SncbProvider(final String jsonApiAuthorization) {
+    public SncbProvider(final String apiAuthorization) {
+        this(DEFAULT_API_CLIENT, apiAuthorization);
+    }
+
+    public SncbProvider(final String apiClient, final String apiAuthorization) {
         super(NetworkId.SNCB, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.15");
-        setApiClient(DEFAULT_API_CLIENT);
-        setApiAuthorization(jsonApiAuthorization);
+        setApiClient(apiClient);
+        setApiAuthorization(apiAuthorization);
     }
 
     private static final String[] PLACES = { "Antwerpen", "Gent", "Charleroi", "Liege", "Liège", "Brussel" };
diff --git a/enabler/src/de/schildbach/pte/SvvProvider.java b/enabler/src/de/schildbach/pte/SvvProvider.java
index ef04cd84..841c2f12 100644
--- a/enabler/src/de/schildbach/pte/SvvProvider.java
+++ b/enabler/src/de/schildbach/pte/SvvProvider.java
@@ -41,10 +41,14 @@ public class SvvProvider extends AbstractHafasClientInterfaceProvider {
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"VAO\",\"l\":\"vs_svv\",\"type\":\"AND\"}";
 
     public SvvProvider(final String apiAuthorization) {
+        this(DEFAULT_API_CLIENT, apiAuthorization);
+    }
+
+    public SvvProvider(final String apiClient, final String apiAuthorization) {
         super(NetworkId.SVV, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.18");
         setApiExt("VAO.6");
-        setApiClient(DEFAULT_API_CLIENT);
+        setApiClient(apiClient);
         setApiAuthorization(apiAuthorization);
         setStyles(STYLES);
         httpClient.setTrustAllCertificates(true);
diff --git a/enabler/src/de/schildbach/pte/VaoProvider.java b/enabler/src/de/schildbach/pte/VaoProvider.java
index 88207544..107b6236 100644
--- a/enabler/src/de/schildbach/pte/VaoProvider.java
+++ b/enabler/src/de/schildbach/pte/VaoProvider.java
@@ -41,10 +41,14 @@ public class VaoProvider extends AbstractHafasClientInterfaceProvider {
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"VAO\",\"l\":\"vs_vao\",\"type\":\"AND\"}";
 
     public VaoProvider(final String apiAuthorization) {
+        this(DEFAULT_API_CLIENT, apiAuthorization);
+    }
+
+    public VaoProvider(final String apiClient, final String apiAuthorization) {
         super(NetworkId.VAO, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.18");
         setApiExt("VAO.6");
-        setApiClient(DEFAULT_API_CLIENT);
+        setApiClient(apiClient);
         setApiAuthorization(apiAuthorization);
         setStyles(STYLES);
     }
diff --git a/enabler/src/de/schildbach/pte/VbbProvider.java b/enabler/src/de/schildbach/pte/VbbProvider.java
index d537414e..2f201bca 100644
--- a/enabler/src/de/schildbach/pte/VbbProvider.java
+++ b/enabler/src/de/schildbach/pte/VbbProvider.java
@@ -40,10 +40,14 @@ public class VbbProvider extends AbstractHafasClientInterfaceProvider {
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"VBB\",\"type\":\"AND\"}";
 
     public VbbProvider(final String apiAuthorization, final byte[] salt) {
+        this(DEFAULT_API_CLIENT, apiAuthorization, salt);
+    }
+
+    public VbbProvider(final String apiClient, final String apiAuthorization, final byte[] salt) {
         super(NetworkId.VBB, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.18");
         setApiExt("VBB.4");
-        setApiClient(DEFAULT_API_CLIENT);
+        setApiClient(apiClient);
         setApiAuthorization(apiAuthorization);
         setRequestMicMacSalt(salt);
         httpClient.setTrustAllCertificates(true);
diff --git a/enabler/src/de/schildbach/pte/VbnProvider.java b/enabler/src/de/schildbach/pte/VbnProvider.java
index 8213a50b..f2bef266 100644
--- a/enabler/src/de/schildbach/pte/VbnProvider.java
+++ b/enabler/src/de/schildbach/pte/VbnProvider.java
@@ -57,9 +57,13 @@ public class VbnProvider extends AbstractHafasClientInterfaceProvider {
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"VBN\",\"type\":\"AND\"}";
 
     public VbnProvider(final String apiAuthorization, final byte[] salt) {
+        this(DEFAULT_API_CLIENT, apiAuthorization, salt);
+    }
+
+    public VbnProvider(final String apiClient, final String apiAuthorization, final byte[] salt) {
         super(NetworkId.VBN, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.18");
-        setApiClient(DEFAULT_API_CLIENT);
+        setApiClient(apiClient);
         setApiAuthorization(apiAuthorization);
         setRequestMicMacSalt(salt);
         setStyles(STYLES);
diff --git a/enabler/src/de/schildbach/pte/VgsProvider.java b/enabler/src/de/schildbach/pte/VgsProvider.java
index 0205f390..e1476403 100644
--- a/enabler/src/de/schildbach/pte/VgsProvider.java
+++ b/enabler/src/de/schildbach/pte/VgsProvider.java
@@ -35,11 +35,15 @@ public class VgsProvider extends AbstractHafasClientInterfaceProvider {
             Product.BUS, Product.CABLECAR, Product.ON_DEMAND, Product.BUS };
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"ZPS-SAAR\",\"type\":\"AND\"}";
 
-    public VgsProvider(final String jsonApiAuthorization, final byte[] salt) {
+    public VgsProvider(final String apiAuthorization, final byte[] salt) {
+        this(DEFAULT_API_CLIENT, apiAuthorization, salt);
+    }
+
+    public VgsProvider(final String apiClient, final String apiAuthorization, final byte[] salt) {
         super(NetworkId.VGS, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.21");
-        setApiClient(DEFAULT_API_CLIENT);
-        setApiAuthorization(jsonApiAuthorization);
+        setApiClient(apiClient);
+        setApiAuthorization(apiAuthorization);
         setRequestMicMacSalt(salt);
     }
 
diff --git a/enabler/src/de/schildbach/pte/VmobilProvider.java b/enabler/src/de/schildbach/pte/VmobilProvider.java
index ababef39..6e080d98 100644
--- a/enabler/src/de/schildbach/pte/VmobilProvider.java
+++ b/enabler/src/de/schildbach/pte/VmobilProvider.java
@@ -38,10 +38,14 @@ public class VmobilProvider extends AbstractHafasClientInterfaceProvider {
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"VAO\",\"l\":\"vs_vvv\",\"type\":\"AND\"}";
 
     public VmobilProvider(final String apiAuthorization) {
+        this(DEFAULT_API_CLIENT, apiAuthorization);
+    }
+
+    public VmobilProvider(final String apiClient, final String apiAuthorization) {
         super(NetworkId.VMOBIL, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.18");
         setApiExt("VAO.6");
-        setApiClient(DEFAULT_API_CLIENT);
+        setApiClient(apiClient);
         setApiAuthorization(apiAuthorization);
     }
 
diff --git a/enabler/src/de/schildbach/pte/VmtProvider.java b/enabler/src/de/schildbach/pte/VmtProvider.java
index 647432e8..1db0c69a 100644
--- a/enabler/src/de/schildbach/pte/VmtProvider.java
+++ b/enabler/src/de/schildbach/pte/VmtProvider.java
@@ -36,11 +36,15 @@ public class VmtProvider extends AbstractHafasClientInterfaceProvider {
             Product.BUS /* guessing */, Product.BUS, null };
     private static final String DEFAULT_API_CLIENT = "{\"name\":\"VMT\",\"type\":\"AND\"}";
 
-    public VmtProvider(final String jsonApiAuthorization) {
+    public VmtProvider(final String apiAuthorization) {
+        this(DEFAULT_API_CLIENT, apiAuthorization);
+    }
+
+    public VmtProvider(final String apiClient, final String apiAuthorization) {
         super(NetworkId.VMT, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.15");
-        setApiClient(DEFAULT_API_CLIENT);
-        setApiAuthorization(jsonApiAuthorization);
+        setApiClient(apiClient);
+        setApiAuthorization(apiAuthorization);
     }
 
     private static final String[] PLACES = { "Erfurt", "Jena", "Gera", "Weimar", "Gotha" };
diff --git a/enabler/src/de/schildbach/pte/VorProvider.java b/enabler/src/de/schildbach/pte/VorProvider.java
index 32a0fe2b..44a06aea 100644
--- a/enabler/src/de/schildbach/pte/VorProvider.java
+++ b/enabler/src/de/schildbach/pte/VorProvider.java
@@ -41,10 +41,14 @@ public class VorProvider extends AbstractHafasClientInterfaceProvider {
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"VAO\",\"l\":\"vs_anachb\",\"type\":\"AND\"}";
 
     public VorProvider(final String apiAuthorization) {
+        this(DEFAULT_API_CLIENT, apiAuthorization);
+    }
+
+    public VorProvider(final String apiClient, final String apiAuthorization) {
         super(NetworkId.VOR, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.18");
         setApiExt("VAO.9");
-        setApiClient(DEFAULT_API_CLIENT);
+        setApiClient(apiClient);
         setApiAuthorization(apiAuthorization);
         setStyles(STYLES);
     }
diff --git a/enabler/src/de/schildbach/pte/VvtProvider.java b/enabler/src/de/schildbach/pte/VvtProvider.java
index 00f245bf..008b1a67 100644
--- a/enabler/src/de/schildbach/pte/VvtProvider.java
+++ b/enabler/src/de/schildbach/pte/VvtProvider.java
@@ -38,10 +38,14 @@ public class VvtProvider extends AbstractHafasClientInterfaceProvider {
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"VAO\",\"l\":\"vs_vvt\",\"type\":\"AND\"}";
 
     public VvtProvider(final String apiAuthorization) {
+        this(DEFAULT_API_CLIENT, apiAuthorization);
+    }
+
+    public VvtProvider(final String apiClient, final String apiAuthorization) {
         super(NetworkId.VVT, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.18");
         setApiExt("VAO.6");
-        setApiClient(DEFAULT_API_CLIENT);
+        setApiClient(apiClient);
         setApiAuthorization(apiAuthorization);
     }
 
diff --git a/enabler/src/de/schildbach/pte/ZvvProvider.java b/enabler/src/de/schildbach/pte/ZvvProvider.java
index 34ebd99a..e354eab0 100644
--- a/enabler/src/de/schildbach/pte/ZvvProvider.java
+++ b/enabler/src/de/schildbach/pte/ZvvProvider.java
@@ -40,12 +40,16 @@ public class ZvvProvider extends AbstractHafasClientInterfaceProvider {
     private static final HttpUrl API_BASE = HttpUrl.parse("https://online.fahrplan.zvv.ch/bin/");
     private static final String DEFAULT_API_CLIENT = "{\"id\":\"ZVV\",\"type\":\"AND\"}";
 
-    public ZvvProvider(final String jsonApiAuthorization) {
+    public ZvvProvider(final String apiAuthorization) {
+        this(DEFAULT_API_CLIENT, apiAuthorization);
+    }
+
+    public ZvvProvider(final String apiClient, final String apiAuthorization) {
         super(NetworkId.ZVV, API_BASE, PRODUCTS_MAP);
         setApiVersion("1.15");
         setApiExt("ZVV.2");
-        setApiClient(DEFAULT_API_CLIENT);
-        setApiAuthorization(jsonApiAuthorization);
+        setApiClient(apiClient);
+        setApiAuthorization(apiAuthorization);
         setStyles(STYLES);
     }