Ok, I got a question, i've done plenty of systems in my time and haven't heard of nething like this, but a couple people have told me this. If you change the head unit on a newish tahoe, you have to keep the stock radio one hooked up and hide it somewhere because somehow it ties in with the ignition...and the car won't start if it's taken out.. Anybody know anything on this?? Thanx, Matt
RDS is a feature that allows the display to show channel call letters, song titles, artist info, etc while listening to a local broadcast. There should be a small RDS logo on the face of the radio if yours has it.