Help! No power to concert!
Hi I have recently purchased my a3 8l 2003 and the person who I bought it off has installed a cheap Sony head unit which is awful and will not allow me to adjust bass treble etc... He also gave me the original concert head unit but I cannot get it to power up when it's plugged in. I have checked the fuses in the unit and the car both are fine. The guy in halfords seems to think that if the keys were pushed in too far upon removal then the concert may now be completely useless... Any help would be appreciated