I've always liked the idea of having an 1/8th audio jack in the dash, it's better fidelity than either an FM transmitter or a tape adapter. And as long as you have the repair manual for your car taking the dash apart is really not that bad. Ripping a hole and mounting an 1/8th jack can't be any harder than when I turned a free drive bay on my computer into an external front mounted serial port, and it looks stock. Also gives you the ability to let anyone else that has an ipod or player to play their music easily.