Originally Posted by
LandyAndy
Greg.
Do you tow multiple LED trailers??? Its the LED's that cause your problem.
If you tow multiple trailers its best to convert the D4.
You need to put a resistor on a indicator line in the rear compartment,it needs to be have a switch so it can be active or inactive.This lets the D4 know its got a trailer back there.It does different things to the electronics,including that bloody noise!!!!Or the pulse busta box will do the same.
Now,you had your wiring done by olde mate in Osborne park,he would be on top of this.Is there a new switch in the rear cargo area??? That would be the resistor switch.Give him a call and see if he did it.
Andrew