This has been happening for a few months now. I went over a bump, and my Mach 460 system doesn't play CDs anymore.
The CD loads; the radio display switches to CD, and the play arrow shows on the CD display. But it never "reads" the CD, it doesn't find tracks or whatever. After about 15 seconds or so, it ejects the CD.
If I press FWD on the AMS button, the display will say 1, but it doesn't find track 1, and the same ejection will happen.
It happens with all CDs, even those that worked before. It happens at all temperatures and at any time in the car (so it's not condensation or heat or cold).
This happened a year ago, and after a month, it went back to working. But this has been 4 or 5 months, and I can't get it to work.
I miss my CDs.