Sportschicfla

I am having issues with my Acura RDX's bluetooth and my Verison Razr Maxx. When I am on a call for several minutes the connect suddenly changes without any warning. From my end it sounds like I am on a speaker and the phone simultaneously and there is a lot of reverbiration & echoing. You can here a noticable difference in the sound. On the other end of the call they can barely hear me and they say it sounds like I am in a tunnel.

This issued happened once before and I was able to rectify it by deleting my phone from the car's system and then reinstalling it. Unfortunately that didn't work this time. Any ideas would be greatly appreciated.