Musta hit the wrong button!
If you play a DVD movie on your laptop and plug this puppy in your Macho stero - Presto - Theatre Sound Surround ! Cost of cassette adapter - $19.95 @ WallMart.
Cost of FM adapter - $68 to $99. Your choice!
I had one of those cassette adapters. On a long trip the clicking drove me crazy after a few hours, so I tossed it in the trash at the next fuel stop. That was a few years ago so maybe they've figured out a way to stop that clicking as the capstan in the tape deck spins.
Of course my vehicle now has a CD player in it so a cassette adapter wouldn't work anyway. The Belkin FM unit I have now was Cdn$32 and does a nice job.
The problem with either of these is that you can't listen to the radio. That's okay if you would rather listen to MP3s off the computer, but if you really want to listen to the radio you're out of luck.