I finally got my Autocom and Zumo to work again! I would like to give Autocom credit for the fix, but it was my local BMW dealer that takes all the credit! Hats off to Eric! I had lost all mic output from my Iphone that's bluetoothed to the Zumo. I could hear calls just fine, but I had no output and they would hang up on me. And I had good feed back with the intercom. All along I would lose the right hand speaker if I hit a bump. I just had to smack the tank bag and it would come on again. After wasting money on a couple cables from Autocom my dealer said to change the little red splitter box between the Zumo and the Autocom. And behold! Everything works!