Ok so the other night I got was installing a radio in my 03 Acura rsx, I got all the wires hooked up correctly and everything but the headunit did not power on. I thought this was odd so I hooked up the headunit to a 12v battery to see if it worked and it did. The car also had a aftermarket headunit installed before. I bought a new Acura harness because I thought it could be faulty, switched it out and nothing. I then hooked up the red power on the alpine 9886 harness with the car's red wire and I also added the yellow wire together with the reds and it powered on. Now everything works but doesn't hold my settings and such. Any ideas on what I could do? Basically the yellow wire on the car harness is dead