[Excess Venom]

HI all, I need to link my Kenwood double Din reverse cable up to my car.. so the monitor activates soon as the car is put in reverse.
can anyone tell me the wire I need to tap into?

Car is a 04 facelift ep3

 

[gazzacrampton]

Reverse light positive side

 

[Zorbathegeek]

Reverse light positive side

It's the BROWN wire in this vertical part of the loom in the rear offside quarter.

 

[Excess Venom]

Thanks for the Pic is there anything closer to the head unit/gear stick?