Trying to find the reverse wire on an audi A6 to tap into relay box for trailer electrics.

Any ideas where to start would be grate an hour on google has failed to give the answer.

Many thank

Agriv8

I'd imagine it'd be a nightmare to find, especially if the loom is anything like the ones Coozer is making at the moment (coloured wires at the ends, but all the wires in the middle of the loom are white!!!!)

Can you not just pull a wire back from the bulb / lamp fitting to where you need it?

The car will be wired in CanBus so it's a bit different from a conventional simple point-to-point loom. As suggested, the best bet is to find the connector to a rear light cluster and locate the wire for the reversing light there.

Make sure the relay box is CanBus compatible. Also, the relay box needs to provide a low current input and high current output for all the trailer lights or it'll upset the Audi's lamp failure detection system.

thanks Chaps - worked a treat traced from the bulb back

Black with a green trace, And you were correct,
into a can bus module at the rear then to a relay pack tapped into the feed from relay to rear lamp taested and all ok.

Thanks agriv8