yea thats the only way its going to sound decent. with the fm modulator thingy majigy its gonna sound like you're listening to the radio unless you get some super duper one. i guess kinda like the one that cd changers use. my bro has a cd changer that uses an fm modulator and it actually sounds pretty good. i had a fm thing for my iriver mp3 hard drive player and it sounded like udder crap so i just bought a new head unit with an aux input and it sounds great...