I was wondering where I can get a wiring diagram of a 98 cavalier. I just replaced the old after market radio and who ever put it in before just cut all the wires from the factory connector. So I went out and bought the orignial connector and put it back on, but I have not connected 3 wires, and I need to know what is what.

Buy a haynes repair manual.... wireing diagrams are in the back.... If the 3 wires are commin from the deck.... don't worry about them... i didn't use the dimmer wire, amp wire and there was 1 more for my pioneer deh 6500... and i have a 99.. but if your trying to replace the actuall harness and you have 3 wires left over to that... then i dunno.. get the manual and look and see...