I have a 97 eclipse spyder and just replaced the infinity headunit with a basic panasonic radio/cd. Radio works perfectly but now I need to keep jumping my car to start it!!!
Basically, I followed the wiring harness diagram I found elsewhere on a board in connecting the radio to the car...the only wires I left in the old harness were the two that were related to illumination/dimmer and variable illumination/dimmer. For the amp under the seat, basically I just unhooked it and removed it and -- much to my surprise the radio worked great without the need to splice the speaker wires there.
Any thoughts on what could be making my battery drain? Even driving it for an hour, I am unable to get enough juice to start the car.