QUOTE(HV @ Jan 26 2006, 12:39 AM)
QUOTE(motorider @ Jan 25 2006, 11:47 AM)
I have a quick question, I am looking for a switched 12v wire behind my radio somewhere. It is a 2004 Silverado with the stock stereo. I am running an iPod converter box, and it had me run one wire to constant 12v, but it kills my battery so I think it is mislabeled and needs to be switched 12v. I've had the meter out, and can't find one.
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If I'm not mistaken, there is something kinda different about the switched wires at the back of the radio in the new chevy's. Don't remeber exactly what it is, but if memory serves correctly, the switched wire can only have a very small current draw or it will burn something.....Can't recall exactly, but be aware, and do some research.
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There is no switched power behind the 2003 and up Chevy radio's. It has what they call a Class 2 Serial Data harness so you have to go under the dash and grab it there. Yoy can get it in the ignition harness... the Accessory wire is Orange and the Ignition wire is pink. You really want the Acc. wire so it will turn your radio on with the first turn of the key or if I recall on Chevy's, the turn back puts it in Acc as well. The Ignition wire will turn it on with the secong click of the key when the fans and everything else are on.
Get yourself a multimeter, switch it to 12 volts, pull the panel under your steering wheel off (7 mm bolts). You will also have to pull the metal panel off that is behind that as well (10 mm bolts I think). Find the ignition harness, look for the orange wire, ground the meter, poke the meter's positive probe into the orange wire and turn the key to the first click. If it reads 12 volts, you got it. Also turn the lights on at the same time to make sure there is no drop in voltage. T tap the wire, run the red wire up to where you want it and you're ready to go. Turn the key off when running the wire though.
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Thanks I'm glad it wasn't just me. I had tried every wire, but couldn't find one. I will find a wire under the dash.