Probably have to do the same thing i did... when i bought the aftermarket headunit, i got home and the color coded wires didnt match up. When you buy a new headunit here are little wires sticking out of the back for the power, remote, illumination, speaker, ground, ignition, blah blah blah... and you need a wiring harness to show the correct coloring for those wires. If you go to metra.com or a car audio shop u can get the wiring harness that attaches to those wires on the back of the headunit and it will connect directly to the harness that goes to all of the speakers in the back.(there are 2 harnesses for audio in those vehicles, one that goes from the radio to the "brain" in the trunk, then a harness from the brain to all of the speakers. So with the harness you will just be connecting those 2 harnesses together wihout a need for the "brain" and may take it out as i did. But in order for the actual am/fm to work you will neex to get a car antennae extension cable to run up to the headunit for your year i believe