Location of wiring to T6 offside rear light cluster

[Mccoatup]

I want to piggyback onto the rear offsite brake light wire in order to use this in conjunction with the 12v NET signal from the EHU, so that I can activate a warning buzzer if I try to drive off with the EHU still connected. Is there an easy way of accessing this wire at the back of the van on the offside (where my wardrobe and some of my electrics are situated)? I don't want to cut through the carpet randomly looking for a black and yellow wire but it must be there somewhere close to the back of the light cluster. Does it come down from the top or up from the bottom?

 

[DXX]

The harness drops from the roof just forward of the D pillar.
You can remove the offside tail light, cut the tape off the harness, pull the rubber boot out of the D pillar and make the connection in a dry location behind the rubber boot.

 

[Dellmassive]

What he said . . . . . =)

 

[Mccoatup]

Thanks very much @DXX and @Dellmassive .