Originally Posted by jackjeckel757
I've got an '04 with a factory radio that has settings and options for the oil life and other stuff, what happens if I want to change to an aftermarket radio? Is there anything bad that will happen? How can I still access these settings without the factory radio?
Some say yes, some say no. This is my experience on changing out the factory deck for aftermarket:
Install went smooth, used a Scosche GM09SR interface to wire up the new deck. About a week later my ABS and Brake lights came on unexpectedly. I shut the car down, started it back up, they went away but would randomly come on every few days or so. Then they would stay on...then the airbag light lit up and would stay on...then the "service traction system" message came up, then the battery light would come on, then the traction system shut down altogether, then I got a code that indicated a bad abs unit, then the brake pedal would "pop" and the battery light would light up when I would try to stop or slow down, then my blinkers stopped working, then I started getting a random starting issue where I'd turn the key and the lights in my cluster would shut off then come back on a second later but the engine wouldn't crank, then it wouldn't start unless I had the shifter in neutral, then it just wouldn't start at all......................see my point?
So what I did was first, removed the aftermarket deck and put stock back in and then took it to the shop and they replaced the shift selector switch and reset my ecu. It's been fine ever since, no more codes, no more starting issue, no more issues with anything. So what i'm doing now is ordering the relocation harness from bestkits so I can keep the factory deck hooked up but it will be in the trunk, then I'll put my aftermarket deck back in.
I highly suggest you do the same