I have installed a Pioneer stereo into a 1999 A4, straight forward as there was another non standard stereo already in it. My problem is the power source. I want the stereo to turn off when I turn my igintion off and turn on when I turn my igintion on. There are 2 power leads from the stereo to put into 2 leads from the adaptor
1. Red from the stereo into yellow on the adaptor
2. Yellow from the stereo into red on the adaptor
This is identical to the setup on a friends Golf and it works fine. Is my igintion different in some way?
P.S I have already tried red to red and yellow to yellow.
Many thanks in Advance.