Retrofit parkingsensors with trailer/tow module

[Lars_m]

Hi all,

I'm about to retrofit parking sensors on my 2011 focus estate.

I found the brown plug and the necessary wiring in the bumper, so it seems that all I need is:

• Parking sensors + harness
• Parking module
• Reprogramming

Easy peasy right? Nope - the car already has a tow hitch installed and it plugs into the socket that the harness for the parkings sensors i supposed to use.

I have attached a picture of the plug under the bumper, and a pic of the wires from a seller. 

I think I'll need to splice some wires, so both go into the same plug. 

What do you guys think? Maybe someone has a diagram of the plug, so I know what I'm dealing with.