Having just installed a tow bar on my E46 330d Touring, I am having
trouble getting the trailer wiring sorted out.
I have a relay unit in the system, so as yet I do not have any trouble
with the bulb failure unit. The problem that I encounter, is that when
I connect in the power to the relay unit, I get a warning beep from
the car. I have connected the power supply to the trailer module,
immediately after the main 200 amp fuse black, and then installed a
secondary fuse for the trailer only.
Any one know how to get this sorted?
Where I like, when I like, in whatever I like to wear.