Hey guys... i know i'm new but i've been install navigation units when people didn't know there was such a thing like GPS..... I'm good "phone friends" with a Tech at Pioneer's Dealer Tech Support. I work in the install/sales industry and I have some news. This will happen, but Pioneer is not sure but aiming for the first week of October.
There will be a FirmWare Update to correct the "gain" level when the ND-BT1 makes connection with the phone. The feedback problem is mostly happening to Motorola Phones and some others, but this firmware will supposedly fix the problem with the bad feedback....
If this does not help after it comes out, my pioneer tech said they will be working on a new/better mic that does not pick up feedback/backround noise, but in my opinion, is very hard to do. I also work in pro/stage audio and believe me we use no-feedback wired mics that cost $350 and the wirless ones over $600.... so I don't know how they can improve this mic technology into this tiny thing... but on the bright side GM, BMW, BENZ and other car manufacturers who have built in cell phone systems work great and they use small mics too... Anyway guys, just wait, there will be an update soon