I bought a 40GB iPod for my girlfriend for christmas. She drives a metallic pink BarbieŽ car, with big Barbie@ wheels, and big unproportionally large BarbieŽ subwoofers and amplifier. She has a really expensive Alpine CD head unit that she really doesn't want to get rid of.

I've been over all the FM broadcasting products, and quite frankly, I think that whole idea sucks. Radio frequencies are in kilohertz... that's 2 decimal places... that means its dynamic range of frequency cuts off by this equation...

FM khz frequency x 100 = maximum audible and broadcastable frequency

example...
99.7 x 100 = 9,970 hz

Humans are supposed to be able to hear 20 - 20,000 hz because the distance between their ears isn't wide enough to hear any frequencies that are lower than that, and their fluid-dampened eardrums are too heavy to vibrate any faster than 20,000 times a second. Ha! Stupid humans.

With that in mind, using an FM frequency to broadcast MP3's cuts out half of the music's dynamic range... in addition, the FCC limits those things to .005 watts of broadcasting power, so there are lots of signal strength and interference problems. Especially in any place with a lot of humans.

What is the best option for getting line level input into this CD deck (that drives everything but the bass)? This deck doesn't have an auxillary jack, but can control a disc changer. Someone's got to make some kind of line converter that takes audio input from that...

Anyone know of any other devices that will let me use the line-out jack of this iPod to hard-wire it in and use this deck's built-in power and line-out signal?