Is this an original Chrysler radio? They don't have any models with a power button that lights up, unless you're referring to the back-lighting that turns on with the dash lights.
If you describe the face of the radio, I can suggest some fixes. There is one model of cassette player and one model of cd player, both built by Chrysler that have microprocessors built by North American Philips, (NAP), the same people who build the really crappy Magnavox and Sylvania tvs that I worked on for 35 years! These microprocessors have a 100 percent failure rate. I have the equipment to replace them, but then the software must be burned in. They will never sell me the equipment to do that. These radios have three tone controls with yellow leds. The cassette player is model number 56038518. All I can remember of the cd player is the model number ends in a "67".
There is a long list of common problems, but the most common ones are the yellow leds flash on and off with a thumping sound in the speakers, and no display, or, the radio goes dead momentarily when moving the volume or tone controls. It is not cost effective to send these radios in for repair, but there are other models made by Mitsubishi for Chrysler cars that are very reliable. There's a direct replacement for the cassette player that looks exactly the same, has the same three lighted tone controls, and will run the same remote cd changer if you have one. The only noticeable difference is it has one extra button for "Scan". These sell for more than 70 bucks on eBay because used car dealers all over the country are looking for them for their used cars.
If you have the Chrysler-built cd player, I'd recommend upgrading to a cd / cassette combo. These are also built by Mitsubishi and give very little trouble. There are cd-only units but most of them are built by Alpine. Alpine is the only company that will not allow the authorized service centers to sell me parts or service manuals. I can still fix them, but I don't promote products for companies that pull this selfish nonsense.
If you snap the trim cover off that covers the radio, you will see four screws that hold the radio in. Remove them and pull the radio out just enough to read the model number on top. You can also tell who built it by looking at the "Supplier Number".
07910 is Chrysler
28046 is Mitsubishi
26777 is Alpine
Holler back with the model number of your radio.
Friday, March 20th, 2009 AT 3:07 AM