I recently purchased a 91 560SEL, and the head unit doesn't seem to work. Pressing the power button lights up all the buttons and raises the antenna. The display area is completely blank, it's not even asking for the code. Are there things that I can check or possibly repair, or do I need a brand new head unit?
Have you checked the fuses yet. Thats the first thing I would do. I dont know much about the factory radio but you might need to have this one repaired or replaced with a aftermarket headunit.
Does the head unit display '----' four dashes across the screen? If so, the unit's security feature has been activated and you will need to take it to the dealer to have it unlocked.
If not, try pushing the faceplate of the headunit back onto the stereo. If you take the stereo out, it should be fairly obvious how the faceplate snaps back on.
what axel said.. You can find a Good bit on installing aftermarket headunits in these. All depends Just how good you want it to sound
Jono
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