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Audi A4 Tow Bar - davidcanning
Having just bought my 2002 Audi A4 ,having trouble with the electrics to the 7 pin plug. The vehicle has a bulb warning system which tells you if a bulb fails. Because of this apparently it is not possible to spice into the wiring to the tail lamps. Anyone come across this before?
Audi A4 Tow Bar - IanT
Go to www.towbarsdirect.co.uk then click on "Products" and read the section headed "A Multiplex relay (7 way by-pass relay)".

Ian