Installing the mikbox at the Y-cable

Most MB vehicles use the "Y-cable" to connect the PSE to the car's harness and compensator. To my knowledge, all models between 2000 and 2004 have it  except the ML and W211 E class (2003 and later). Also, some 1999 cars have it already.

The part number of the cable is Q 682 0468 and it is part of each individual model's completion kit for the phone installation. The best way to install the mikbox is to attach it to the harness connector of this cable.

Generally the Mikbox can be hooked up to either end of the Y-cable, but in most cases it is easier to put it between the Y-cable and the harness, because that way it can be located more flexible, and also it is possible to fasten all connectors with screws, instead of using workarounds like cable ties or duct tape. This page will describe how to connect the mikbox to the Y-cable.

I also can not stress enough that you should download the installation bulletin of your model, so that you have an overview of where the components are located.

Here is a picture of the Y-cable, with descriptions of the connectors:

As you can see the connector to the harness has a bracket attached to it that snaps into the connector that is located in the vehicle.

The bracket can be detached by removing the screws as shown in the picture below:

After the screws have been removed the harness side of the Y-connector looks just like another DB25 connector.

Next we attach remove the two connector screws from the male DB25 connector on the mikbox. Its the connector with the two holes beside it. (If your mikbox doesn't have holes, you don't have the updated hardware parts, and need to send it back to me). Then we put the harness bracket on top of the connector, so that the two screws of the bracket fit into the holes in the mikbox. After that we screw the mikbox connector screws back in.

It should then look like this:

Next we screw in the Y-cable's harness connector into the mikbox, using the screws that were originally used for the bracket.

Everything done, rock solid.