My 2004 Chevrolet Tahoe OEM GMC 2003-2005 Radio AM FM 6 Disc CD with Aux Input is acting up. For over a year now I have been having problems with the radio and CD player. It started gradually and now it happens all the time after a few minutes bout of playtime.
Problem #1:
After a few minutes the CD player will just stop. It'* not like tracks are skipping or anything like that, it just stops. When that happens I immediately push the band button, listen to the radio for about a minute or so and push the CD button again and the CD continues playing where it left of. And so on, until it gets so bad that the CD will stop 2-3 times within a song. By that time I give up and listen to the radio.
Problem #2:
Every so often the radio seems to be doing something similar. I'll be listening to an FM station and all of a sudden that station goes silent. When that happens ALL FM stations are silent. I can switch to a different FM station or switch from FM1 to FM2 - nothing! However this never happens when I switch to an AM station. I switch from FM band to AM band, AM comes in loud and clear. I switch back to FM - silence!

My dilemma is that I have no way of testing whether the problem is with the radio or the BOSE sound system in the car. Any ideas how I can isolate the problem are greatly appreciated. Thanks

You need a new player.

CD issue: Sounds like the CD player is going bad, likely the spindle motor. I'd guess it'* not cost-effective to repair. Best bet is to replace the head unit. The spindle motor spins the CD with the worlds tiniest motor spinning a disc for years in a hostile environment . . . and it'* just big enough to do the job and get it through the warranty period.

FM issue: Sounds like the RF receive amp is going bad internal to the radio. I'd guess it'* not cost-effective to repair. Best bet is to replace the head unit. The receive amp takes the miniscule amount of RF received from the air and amplifies it enough to be a usable signal that can be turned into music/talk/noise/etc.

A replacement unit of similar vintage from a junkyard will likely come with CD player issues, but the radio issues are pretty rare in my experience. You might be able to take a junkyard unit with an iffy spindle motor and find an electronics shop that would be able to source the spindle motor and solder it on and maybe be back in business for quite a while.

If you replace it with OEM, you will need to visit the dealer to get the radio programmed to your vehicle.

IMO, upgrade the head unit to something better. Pioneer/Kenwood etc.

There is just no way beating this or coming out ahead, no matter what option I take. The engineers at GM must have spend days just trying to figure out how to thoroughly screw the public with this radio locking BS. The best option would be to get a hopefully good unit on ebay and there are maybe 2 or 3 companies that will actually unlock and program their units to your VIN before shipping it to you. You get it truly plug and play. Cost around $325. I bought one of those a few years ago from factorytunes in Las Vegas and it was great. I plugged it in and everything worked just fine. Only problem is that the unit failed shortly after a year and factorytunes does not back their stuff or even repair it. They told me to pound sand or buy another one. Now I am stuck with $325 worth of junk in my dash board. Very nice people. Next option and now it gets ugly. Again buy a good unit on ebay for around $250 but it needs unlocking and programming by a Chevy dealer. All quotes so far from local dealers are around $150. That makes it about $400. And if it doesn't work I am stuck with that too. Now everybody says upgrade, get something better, go aftermarket. Ok, I looked into it. Went to Best Buy, picked out a nice radio of my liking around $300, not the cheapest and not the most expensive. I wanted to stay withing that $300 bracket. So I was encouraged and made up my mind I am going to do it. Salesman says, yeah but, but, but, let me see what else is needed. We need a new harness to make sure everything else in the car is still working $158. Then we need the mounting hardware to install the unit properly in your 2004 Tahoe $28. Then there was another thing we needed (I already forgot what it was) $26. So all of a sudden my new radio will cost me $511. Good thing is Best Buy installs for free and will take it all back if it does not work. That is good in case the problem is with the Bose system. Or maybe I just chuck it off to experience and do nothing. I am just surprised that there are not more entrepreneurs doing the unlocking, programming and catering to radio swapping.

Reprogramming GM radio'* requires a GM Tech2 programming device. These things cost about $3000. This does not include the yearly subscription to maintain the software/updates in the Tech2. So, in the end, the cost of this would still be passed down to the customer anyway.

The other device you are trying to remember was probably the chime device. On newer 2000+ GM vehicles, system chimes are played through the OEM radio.

Thanks Mike. You seem to have a good understanding of it all. Thanks for all your good info. This is so frustrating. But in the end I will do something, once I figure out what. - LOL