For some reason the CD is no longer being detected by the audio system. Checked fuses that I know about but that was not it. Any ideas? Thanks

 

I had the same problem. If you have the cd changer in the trunk like me, my problem was a loose connector from the changer to the radio unit.

 

i had the same problem- putting in new fiber optic lines fixed the problem
1999 sl500

 

BUT, i only had the lies going from the head unit to the trunk, as in the lines were basically laying on top of the car, NOT installed under the carpet, etc...dealer today told me $1100 to do this, last week they told me $169...benz of tucson...got to love em'...anyway, does anyone know how to correctly install the fiber optic lines!?...i will say this forum has already saved me approx $ 2800 in doing some repairs myself..thanks all!!!