Towing Electrics

[maidstonedave]

Evening gents. Got detachable tow bar and single electrics (non OEM) on my Connie but the sensor buzzer goes off any time I select reverse with anything attached. Want to put a switch in boot area to break the circuit when necc. Anyone done this or could tell me the correct wire colour to break and where from ?
Thanks in advance.

[raykay]

Fit the switch in the Brown/Green cable in the parking sensor ECU connector, it is the feed from the reverse light switch.