I've tried FM transmitters and while they're fine for the most part, I would encounter problems with interference so I opted to purchase an aftermarket deck and an iPod connection kit. The iPod stays in my glove compartment charging and I control it via the deck. Plenty of car stereo manufacturers i.e. Clarion, Alpine, Kenwood, Sony, etc..,have their own iPod connection kits so if your stock deck can accomodate the kit I guess you could try installing it yourself or having a car audio tech perform the installation. The iPod connection kits typically run between $50-$100 and for the most part current aftermarket decks are "iPod ready" meaning they just require the connection kit. With my Kenwood deck, I can only control the iPod through the deck so it can be bothersome to navigate 40GB+ worth of music so I've had to use playlist to circumvent this. I have seen a Clarion touch screen deck/DVD player that mimicked the controls of the iPod so in theory I guess you would be able to navigate much quicker although at the time, which was in 2006, this deck was slightly over $1k.