Check out this link for the FM Transmitter BT that I went with:

https://www.crossfireforum.org/forum...ing-audio.html

After having it for a while, it's okay and I would rate as a B.

My next upgrade would be a BT Radio, probably Kenwood with everything built in.

With the Transmitter I'm still stuck with the Stock Radio, which in my opinion is rated a C for Audio Quality...