6 stack CD Player in Auto

What are the problems exactly. You are being to generic.

2007 mercede ml320 wiring diagram ecu&body control

With the low current draw that a cd unit uses It would take some hours to affect a good battery. Remove the fuse for the cd unit and have a battery shop check the battery for a bad cell ( Load test on the battery). Pull the cd player and have a tecki look at it as I feel you have 2 faults not connected.

My CD Player did the same. It showed an "ERR" message when trying to detect the beginning of a CD. I thought that the CD was dirty and wiped it down. Then I discovered that the player would detect the CD when the car was idle, but not when the car was in motion. Maybe the laser is THAT sensitive. Hope this works for you.

Had to replace same unit twice in 2004 G35. Seems to be a bad model. Sometimes a dirty disk(s) will cause operation problems so make sure all disks are sqeaky clean, and if they are in unit for more than a month, remove, clean and reinstall. Use plain water and a soft cotton rag for dust, but windex for grease/oil/candy etc. Also vacuum unit face opening when cleaning interior.

Hello, I just removed the 6-disc player from my 2001 Trooper. To remove it: 1) Remove the two screws above the radio area in the black faceplate 2) Remove the one screw located between the ash tray and the lighter. 3) Remove the four screws (two on each side) from the front center console cover and pull it back (you will need to shift into 2 or L) 4) Pop the black face plate off (there are some metal brackets holding it on that need some light force to pull out. Nothing should break) 5) There are two screws for the CD player and two screws for the radio. Unscrewing them will allow you to pull out the radio and disconnect the smaller CD wiring harness, then you can pull out the CD player.
When I unscrewed the CD player unit, I found that there are six plastic halos that hold each disc and move them up and down as selected. These had broken in some places and the discs had dropped to the bottom and stacked, so nothing could move...hence the clicking sound. Because there was a severe jam, nothing else could be loaded either...hence the error message. I'm attempting to superglue the pieces back together to see if I can reset it. Otherwise, I'd recommend you replace the unit (most likely what I'll do).
Hope this helps!
Ryan

Unplug the cable behind the cd stack box and plug it back in and see if that helps. It worked for me. I get this problem once in a while and this always helped.

Remove the player and have it repaired, that is all you can do.

Metra makes a preamp harness that you can use if you have the partial Bose system. My A4 had that (where the front speakers were run off of the headunit with speaker-level feed, but the deck put a line level signal to a rear amp to power the speakers). This harness would let you use the aftermarket deck with your factory speakers, if you have the partial Bose system. Best bet is to do a Google search for "Metra 2001 Passat" or something like that and I'm sure it'll show up.

The trunk mounted 12 disc magazine changer with the Bose audio system is made by Pioneer. Mine is a bit flaky too so I try to avoid unnecessarily swapping out the CD's. Those error codes can mean anything from a defective/wrong disc type (it does not support MP3 discs), a disc being upside down, or forgetting to close the magazine loading door. It can also indicate condensation on the laser lens or a system malfunction. There may be a list of error codes in the owner's manual if you have one, I currently don't.

Assuming you have checked all of the possible human errors above, there are aftermarket sellers that claim you can adapt an aftermarket changer to the Bose system albeit with with inferior sound quality to the original system. Bose is typically well-known for it's audio quality. That being said, the other option would be to seek a repair facility that can repair these changers. There are some places on-line that repair car audio that also might be able to help.

A cheaper workaround might be to hook up a portable CD/MP3 player using a cassette adapter. Assuming the cassette player, amp and speakers are good, you would possibly still get fairly high quality sound from the Bose system.

Best of Luck!

SC442299

1996 Oldsmobile Aurora
4.0L DOHC 32V V8
Bose Audio w/ 12 Disc Changer
Autobahn Option