Does anybody know if i hook up my new MP3 player into my car stereo would the quality be better through one of those wireless integrations (that goes through the radio) or straight through the cassette jack?

oh yes i know i know i know
you need to get a cassete to cd or mp3 adapter its like a little cassette wiyth a wire on it, the wire connects to the head phones plug part and the sound it perfect, you can find these everywhere check it out on ebay
i would send u one ut florida is too far for me

I use a cassette adaptor because it came with my player and I'm too cheap to spend another $30 on a FM transmitter. The sound is excellent. The only con is that with quiet music, you can sometimes hear the cassette turning in the car player.

so is there only one type of cassette-mp3 player converter or are there such things as better ones and/or worst ones?

I dunno i have one from Jenson and it works fine, the only con that ive found is that in order to hear much you need to turn the volume up pretty damn high on the car radio. Raising it on the mp3 player itself wastes a lot of battery.

I'd say if your car has a tape deck, get a cassette one. If it doesnt, get the FM transmitter.

You may also have an input jack in the front or behind the unit.

When I moved from NY, to Key West last August, i picked up a belkin fm transmitter for my axim x5, since the moving truck only had a radio. Two days of great music on the road. However i bought the analog one for $19.99 at walmart, but the $29.99 digital one may work better. Not because of sound quality but because you have a greater selection of channels to transmit through. The analog only allow you 88.1, 88.3, 88.5 or 88.7Mhz comapared to the 88.1MHz-107.9MHz for the digital one.

[Moved to Neobahn]

Your options are based on the type of radio you have in your car. I purchased an alpine head unit. It has aux in... but they also provide an adapter specially made for the iPod. I can now navigate the songs on my iPod straight from the head unit.

You can use the cassette adapter if you have a tape deck in your car, RCA to minijack if your head unit has aux in, or an FM transmitter if you have neither. Keep in mind, if you use an FM transmitter, the quality will only be as good as an FM radio station.

Line In --> Cassette Adapeter --> FM Transmitter

FM should be your last option.