changing to aftermarket headunit

[s3matthewd]

just taken out my double din concert stereo and replaced with an alpine double din got everything working exept the front speakers could anyone help me understand why it has the bang and oulsen system with sub many thanks matt

 

[AndyMac]

Don't think you have a B&O system as they only offer that for A4 upwards. Think you must mean Bose. Sounds like you have the wrong adapter if the front speakers don't work. You need the one with both front & rear RCA's as the Bose system is fully amped.