Ok.... me again. I'm using a V635 with cradle. The dealer installed a snap in adapter, a trim piece , and something else (eject box????).

I plug my phone in and the signal doesn't get any better. If anything it's worse.

From an earlier post I was told since my car is a 2006 w/ nav and bluetooth I didn't need the bumper antenna but I think I may???

How can I tell?