Question about Pioneer DEH-3900MP CD Player

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Detach front plate

Hi,  I recently bought a used auto with deh 3900mp in it.  It's great radio/cd player.  I have trouble removing and replacing the faceplate. I can't find a manual for it. I have to remove it when i park.  Sooner or later someone will break the window and steal it.   Anybody have some tips.?  Thanks, Sven

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You just go sideways... slide the left part in first and then click in the right side. easy.

Posted on Jun 16, 2008

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Wiring colors ford ranger 1992 &pioneer deh 3900 mp need to know which wires are which thanks


I suggest check this diagram
DEH-3900 Installation Manual -->> DEH_3900MP_CRD4131_installation_manual

1992 Ford Ranger Pickup Truck Car Radio Stereo Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Green/Yellow
Car Radio Accessory Switched 12v+ Wire: Yellow/Black
Car Radio Ground Wire: Chassis
Car Radio Illumination Wire: Blue/Red
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Orange/Green
Left Front Speaker Negative Wire (-): Black/White
Right Front Speaker Positive Wire (+): White/Green
Right Front Speaker Negative Wire (-): Black/White
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Pink/Green
Left Rear Speaker Negative Wire (-): Pink/Blue
Right Rear Speaker Positive Wire (+): Pink/Blue
Right Rear Speaker Negative Wire (-): Green/Orange

Hope helps.

Oct 03, 2011 | Pioneer DEH-3900MP CD Player

1 Answer

I have a Pioneer DEH-P3600 detachable face car CD receiver. It has been working great until a week or so ago. After removing the front panel, turning the car off then reattaching it and starting the car...


did you clean the contacts on both the face and the subpanel? what did you use to clean it with. usually qtips and rubbing alcohol or a pencil eraser work best.

Feb 28, 2011 | Pioneer DEH-P3600 CD Player

1 Answer

Pioneer deh p3100ub shuts off when i touch deck


sounds like the faceplate is not seated right or has dirty connections but it is in your detachable face plate. your still under warenty.

May 24, 2010 | Pioneer DEH P3100UB Car CD/ MP3 Player

1 Answer

I lost the faceplate to my deh-3900mp and am trying to find out wich faceplates will work with it..


only the the same model number will work, others may fit and seem to work but the buttons will be jumbled up.

Nov 15, 2009 | Pioneer DEH-3900MP CD Player

1 Answer

User guide for DEH-3900 MP


You can view and download the manual here:
http://safemanuals.com/user-guide-instructions-owner-manual/PIONEER/DEH-3900MP-_M

Requires adobe acrobat reader. If you don't have it you can download that here:
http://get.adobe.com/reader/thankyou/?item_reader=860&usedlm=1

Mar 14, 2009 | Pioneer DEH-3900MP CD Player

2 Answers

Face plate


the face plate is not removable it only folds down

Apr 10, 2008 | Pioneer DEH-P6600 CD Player

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