Deh p8600mp fault !!!

try pacparts.com.

You can download a PDF of this user manual online from the Pioneer web site. Go here:
http://www.pioneerelectronics.com/PUSA/Support/CarAudioVideo/In-Dash/CD-Players/ci.DEH-P8600MP.Support

Click on the link, owners manual for the download.

Gary denvermacintosh.com

insert left side first then snap right side in

it probably has a bad flexible cable.

Ask manualfox.com

when you take the unit out of your car and looking at the top of the unit there are two black screws. Remove those then remove the entire cd player cage by the 4 CHROME screws on the four corners of the cage the two in the front are in the two holes in the ver front (**use magnetic screw driver for this**) then disconect the two wire plug and the ribbon cable from the bottom of the cd player cage **BE GENTLE** there are two black tabs on either side of the ribbon cable. THEY ONLY MOVE ABOUT 1/8TH ON AN INCH using a jewler flat blade screw driver gently slide the clip out to un crimp the ribbon cable then once the cage is removed you can open the face. To open the face there is a white gear wheel on the rightn hand side of the unit you can rotate it with your thumb with a little effort. Rotate accordingly..... at that point you shouldnt have any problem but let my know if you do..

My friend maybe you burn out the audio amplifier output

sounds like an initial connection problem in the ribbon (where the two ends connect)

Use Customer service here:http://parts.pioneerelectronics.com/model.asp?modelNum=DEHP8600MP&x=55&y=12

http://cgi.ebay.com/PIONEER-WIRE-HARNESS-DEH-P8400MP-DEH-P8600MP-DEH-P960MP_W0QQitemZ190037675247QQihZ009QQcategoryZ39752QQssPageNameZWDVWQQrdZ1QQcmdZViewItem#ebayphotohosting ------ copy and paste this. i hope this is what your looking for.