I have a 2001 Pontiac Grand Prix with the stock AC delco Cd player radio head unit. I just recently got an iPod and have tried the available FM modulators for use in my car. While the sound isn't terrible, I'd like to use a cassete adaptor or line out directly to the head unit, as I've been told that it will sound much better. The problem is that the radio head unit doesn't have a cassette player. Is there anybody out there who knows if it's possible to set up a direct line out to my stock head unit through open connectors or jacks in the rear of the unit? I'd hate to deconstruct my dash just to find out it isn't possible... Other solutions would be welcomed, too. Thanks in advance for any input.