Why would you ever do this!?
Discussion
Alex Z said:
 Presumably one channel on the amp had failed so they just run left and right off the remaining one. 
That makes a lot of sense! The original professional radio/amp failed, hence the aftermarket Alpine head unit.  I won’t bother putting the old radio/amp on eBay then! ThanksGassing Station | In-Car Electronics | Top of Page | What's New | My Stuff



t ever since I bought the car, so whilst the M3 was off the road for the winter, I thought I’d investigate…..Eventually I found this in the boot!