Connect IPod Touch to car-stereo by AUX cable

Have a look here. Helped me solve my problems:
http://www.lowcostcaraudio.co.uk/
http://www.incar-emporium.com/

Good Luck

wms44

I use the Griffin TuneFlex... it plugs into your lighter outlet, charges your iPod and has an aux connection but through the dock connector, not the headphone jack so you don't have to worry about the volume, plus it's on a gooseneck so you have easy access to your iPod. It also fits pretty much any full sized iPod except the oldest 80GB model because the thickness of the dock is adjustable.

I currently have a Newer Technology (that's the brand name) cable that connects to the cigarette lighter via the dock connector. I used it with my iPad Nano before I got my iPod Touch. The sound was great through 87.9 FM. It also charged my Nano. With my iPod Touch the sound is still great but the battery does not charge! Boo!

The sound is NOT so bad if you hard wire an FM modulator to your stereo. Circuit City does this job. It takes about an hour and costs a little over $100 with parts. Sounds infinitely better than the little short range FM broadcasters.
If your car is old enough to have a cassette player, you're in luck. The cassette adapters are only about $20 and sound very good. I have a newer car with only a CD player and had to go the modulator route. Besides a installing new stereo, this is probably your best option.

All that technology and they didn't put an aux in plug! Sell the blaupunkt on ebay, and get one with aux in on the faceplate.