Re: MP3 player in car
IMHO it's not the quality of the material that's the problem, rather the 'power' of the transmitter and the 'quality' of the car radio. When I got the transmitter first, I played it through a JVC CD/radio/cassette stereo at home and it sounded fine.
I had intended to play it through the radio of the other car but haven't got round to that yet.
There was a discussion on AAM about using an iPod in a car - can't find it now using the Search.
The opinion seems to be that the FM radio transmitters do not work well as you keep having to tune to different stations where there is no static, which is difficult in Dublin, and there are sometimes issues with the volume i.e. the radio volume must be very loud, so when you switch back to a normal FM radio, you blast your eardrums!
The cassette systems seem to be better although I hear that there are moving parts required in order to keep tension against tape heads, which can be audible. No worse that listening to a tape player in car, I suppose.
Some of the better tape player adaptors apparently allow you to change tracks on your iPod / MP3 player by using the FF / REV buttons on your tape player, which is handy.
And of course you may need an adaptor to power the MP3 player, if going on long journeys!