Hi guys .. need help on the 03 Z4 aftermarket radio wiring ( not using the adapter because the factory plug was gone ) I bought my Z few weeks ago and the radio was replaced with an aftermarket one , the factory amplifier was removed and the wires from the plug was cut and connected to each other to make the speakers work ( only front speakers ) . Now I just bought a used factory amplifier and wire everything back to it should be but there’s no sound ( already checked all connections from the amplifier and they’re correct ) then I checked on the aftermarket radio and find out that they cut the factory plug away and wired directly to the car without using adapter ( some of the wires is still left behind and hanging around ) so I suspect that they’re not connected correctly that the reason why I have no sound .. it’s will help a lot if someone can give me the full diagram so I can get the sound back on again … Thanks ( mine is with the cd changer )



