12v accessory wire

The wire should be yellow @ the radio harness at the dash..as it has been with GM since the 1960's. If that wire is dead check the acc fuse. If the wire is still dead after you replace the fuse....tap off the thick brown wire @ the ignition harness and put your own fuse on that wire to prevent burning of wires or a main if something goes wrong.

Now theres one other possible scenereo, I don't recall the sunfire but a few of that era GM cars used a seperate amp/tuner box that is located elswhere in the vehicle...the unit in the dash is just a controller and you can not use any wires there. A quick way to tell is if there is no antenna cable at that area. If not you will need to locate the tuner/amp box (it is silver..has fins on one side like an amp..a few plugs on it..and the antenna cable.

You will need to extend all those wires and use an antenna extension cable and run those to where you are installing the new deck..all your speaker wires are there as well.

Hope that helped.

There should be another yellow wire there for ACC...it is in the same harness as the ground (black)  constant (orange)  dimmer and ill. (brown and gray)..unless...the factory harness is hacked..isin't it?

Ok..this is cheesy but if you can not get to the ignition harness go to the (uggh)  fuse box. Use a fuse tap from the radio acc fuse and it will get you home, so to speak.

No problem at all ken....but will the mystery of the missing yellow accessory wire at the dash ever be solved???lol

Take it easy.

DOH !!!  I overlooked that....the Factory RDS head units of that year are databus....my bad....

kenvette...did you lose the doorchime ??