olly
Member
I have just purchased an Alpine CDA-9847r head unit for my 2001 A2 which has the Symphony head unit and Bose system. But after fitting the Alpine unit with a PC9-410 wiring harness adaptor, the speakers now make a 'pop' noise when changing track or ejecting CD's. I think its the Bose amp turning off and on again each time I change track or eject CD's but I am not sure. Does anyone else know of this problem or encountered it themselves?