20 Most Recent Pioneer DEH-P4500MP CD Player Questions & Answers

Your iPod lead is probably pluged into the CD changer socket so you may need to press the "CD" button twice.

Pioneer... | Answered on Jul 13, 2011

The removal keys for this unit are not the usual "U" or "HorseShoe" keys. Disconnect the live feed before starting.
You require the Pioneer removal keys to avoid damaging the unit. Your local accessory dealer may loan them but cheap enough to purchase. Once the unit is out you simply gently pry at the locking tabs which retain the cage into the dash facia. I normally use a firm electrical screw driver for this part.
Remove the loom and antenna etc. from the cage connectors and it should be free

Pioneer... | Answered on Mar 29, 2011

The owner's manual can be found here: http://www.pioneerelectronics.com/pio/pe/vgn/images/portal/cit_11221/50151operation_manual_DEH-P4500MP_20031171513487130.pdf
But to answer your question, the clock can be set like this.
  1. Press FUNCTION until clock comes up. Select it.
  2. Press the arrows until the segment of the clock you want to change is highlighted.
  3. Use the up and down arrows to set the clock.

Pioneer... | Answered on Mar 01, 2011

try pacparts.com

Pioneer... | Answered on Nov 04, 2010

If this is your Model : http://www.pioneerelectronics.com/PUSA/Support/CarAudioVideo/In-Dash/CD-Players/ci.DEH-P450MP.Support

Click on Download Owner Manual you'll have the Wiring Diagram in it !

Basic Wire are :

Yellow : Constant + 12V
Red : Acc + 12V
Black : - Ground
Orange : Dimmer Light
Blue : Electric Antenna
Blue/White : Remote Controller ( For Amplifier )
And 8 Wire for Speaker's each with a +/- wire ! Negative one's has a BLK line on it ! I Hope this Help you !

Pioneer... | Answered on Aug 11, 2010


Please check page 35 in the manual below:

Owner's Manual - DEH-P4500MP

Pioneer... | Answered on Jun 01, 2010

yellow backup memory for clock and settings and black -ve. thanku

Pioneer... | Answered on Nov 21, 2009


1. Is the head unit powering the speakers directly or through an amp?
2. What ohm load (4,8,) per channel and how many speakers?
3. Does it do it with the bass set all the way down?

If you have access to a voltmeter see what the voltage is on the yellow and black wires when it is diming. It should be stable ~ 13.5v with car on. if its < 10v when dimming either there is:

1. Shorted speaker lead.
2. Bad ground to radio.
3. loose power feed to radio.
4. Ohm load below 4 ohms, causing the eccess current draw.

Pioneer... | Answered on Nov 12, 2009

That error is (Format Read Error). Usually a MP3 problem when the disc was burned too fast, or corrupted during burn. Some writing programs dont put an initial track on the CD designating it an audio disc. I have seen Nero have many Problems with this. FYI
Try burning 1x speed on the next disc, yes slow, just to see if it works. If so then gradually increase the burnning speed up again.

Pioneer... | Answered on Nov 12, 2009

Go t othis link on page 35 it tells you how to set clock.


Good Luck and Please Rate FixYa!

Pioneer... | Answered on Apr 19, 2009

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