In my German spec BMW, I installed a JVC with an IPod connector. It works really well and I like the ability to control the IPod through the head unit. I also like the fact that I put the IPod out of sight in the glove box and leave it there. For the Jeep, right now, I use an FM transmitter. It actually works very well. When I go back to the states next year, I'll be pulling the JVC out of the BMW and putting it in the Jeep. I'll keep the IPod out of sight in a Tuffy glove box then.
Anyway, I was never really impressed with FM receivers until I got this latest one from iLuv. It is the i701 and is by far the best transmitter I have come across. Very powerful and rarely do I get static. Here is the link: http://www.i-luv.com/iLuv/product_in...roducts_id=272