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Symptom is radio diplay or controls don't light up, Delco CD radio's and Bose preminum sound radio/CD players. Models all GM cars and trucks 1990's to presnt.
This problem is caused by two tiny burnt out bulbs behind the LCD display thay are soldered to the circuit board behind the radio LCD display and can be replaced, this requires the radio be removed and the housing taken off and the front display un-clipped, you will need a low temperature solder pencil and thin strand solder the bulbs are available from Radio Shack, the part number is 272-1092, this is a 2 pack of miniature 12 Volt 60Ma bulbs. This radio display bulb is used in may car models, this bulb also repairs climate control displays as well as other low light displays like switches
Try Doctor Don's. He is an AC Delco expert who can repair a lot of AC Delco radios. He put some new amps into my Radio/CD player for my 1990 Cadillac Deville so it would play in my AC Delco Radio's place. He really knows what he is doing when it comes to radios.
go to a store were they sell car stero an take your radio an tell them u need a wiring harsent to plug in the radio an plug into the plugs on the car you have dont go to walmart the dont sell them its going to be from car stero store.
Common for the CD to get stuck on the Delco radio, Try resetting the radio by disconnecting the battery for 5 min and then reinstalling the cables. This will reset the radio and you should get your CD to work again, if there is an issue. You going to have to go to the dealer and they are going to have to use a Tech2 scanner to reset and reprogram the radio. If there is any mechanical issues the Tech2 scanner will identify the issues, but 90% of the time. It's just a simple reset and the other 10% is a reprogram or replacing the unit.
Thank you for using fixya and good luck.
the purplr wire are data wires and are needed to hookup to the olds alero computer to allow it to turn on. these radios do not use acc. power wire to turn on. they get a data signal from the Body control module in the car it is installed originally. If you know what you are doing you can hookup up a BCM from a diiferent car and send the data from it to the radio. but takes alot of time and knowledge.
Then I unscrewed the bottom panel of the radio. Unscrew the brass screws holding in the cassette player portion of the radio. Now flip the cassette player over to see your tape, etc. When I pressed the eject button, I noticed a little motor with a worm gear would move a a gear which moved several other gears until it eventually moved a black gear which has a little post that moves the metal arm which moves back when pushing in a tape and moves forward when ejecting a tape. But I would get a clicking sound which seemed to be due to one gear trying to move a stuck gear.
I forgot the exact details of how I managed to get the tape out, but when I did get it out I noticed when I turned on the radio, it would act like it was trying to play a tape. But when it found out it couldn't, it would try to eject but would fail once again with the gear clicking sound. I think I tried moving the black post on the black gear that moves the arm that pushes the tape out. Eventually I got to the point where the arm was pushed forward like it should be when a tape is ejected. At that point I was able to insert and eject a tape without any problems.