Join Date: Oct 2005
Location: Southern Indiana
Google will give you thirty-six million links, and none are cheaper and easier than the FM transmitters, which work in low broadcast density areas but aren't very good on road trips or in big cities.
Having looked at this issue for the last few years, I have to say that the easiest and cheapest good solution is to replace your stereo with one that has an iPod interface already built in, or at least an aux input. Somehow or another you have to get the signal into the radio before the amplifier stage, and that has to be built into the deck. That's why FM transmitters and cassette adapters are popular for older stereos that didn't anticipate auxilary input devices.
Current: '78 spider with dual Webers and lots of smiles.
Former: '86 Spider that now lives a mere 30 miles away.