I added a parrot handsfree device [MK6100] to my jimmy to be legal. Obviously this is a bluetooth device. What I also got out of it was I am now able to connect with my TT920 through bluetooth. It works great. It has a separate amp and I can listen to my radio now and it will cut the radio and give instructions. I don't have to use the fm modulator and I can control the volume a lot better now. My IPOD, and TT920 is a perfect match with the Parrot handsfree. Note: the handsfree device works great also.
Here's a link: http://www.parrot.com/usa/products/hands-freecarkits
Here's a link: http://www.parrot.com/usa/products/hands-freecarkits