Question about Pioneer DEH-P3700MP CD Player

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No power to deck

I always leave my radio on, but recently the battery was removed from the car, my deck hasn't come on since. Had a friend check the fuses, they seem to be ok, what else could be the problem?

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Re: No power to deck - Pioneer DEH-P3700MP CD Player Car Audio Receivers

I cant hook up my i pod

Posted on Feb 24, 2008

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I recently purchased a Pioneer DEH-X7500HD car radio and this is my first time doing this type of installation. I'm having some trouble with the wiring, I have excess wires from the wiring adapter.

Depending on your car the looms are different fron standard wiring on all decks.
Basically you have red which you will connect to a power source with the correct fuse inline. This wire can be taken from the ignition source if you want the deck to work only when the key is in the ignition or directly to a the battery (still with an inline fuse) if you want the deck to play even when the keys are removed from the ignition. This is risky as you might forget to switch off the deck and it will drain the cars main battery.
Next you need to connect the yellow wire to an always on power source or directly to the battery, again with an inline fuse. This wire will allow the deck to retain your settings. The black wire must be connected to any metal eathing point that is connected to the cars body so the deck will be connected to the negative power supply. \
That's the electric current connections done.
You should then have 4 pairs of wires for the speakers, usually green, white, purple and grey. They consist of one strand in a single colour(positive) and one strand of the same colour with a black stripe(negative). These are for your speakers-front right, front left, rear right and rear left. Off hand I'm not sure which colour goes where but it should be on a sicker on the deck or in the manual. Alternatively connect them up and figure it out using fader and balance controls on the deck.
The other wires are blue for an electric antenna or as a signal to an amplifier to switch on.
Sometimes you'll get one for a subwoofer this ones colour varies from deck to deck.
Lastly if your deck can play DVDs or video files there might be a pink one. This is supposed to be connected to the handbrake so that you can only watch video when the car is parked and the handbrake is on.
You can bypass this by connecting to any metal earthing point on the car like the black negative wire.
If you have any other wires they maybe for steering controls and those are dependant on the vehicles wiring configuration, but are not necessary for the deck to operate.
One last thing, instead of connecting directly to all the wires I suggest you get a wired plug leads and wire the deck to one end and the other end to the wires in the car. Take note of wiring both ends to the corresponding pins. This will make it easier if you want to take out the deck and put it back in.
Hope this helps

Nov 15, 2013 | Car Audio Receivers

1 Answer

How do you remove the Pioneeer DEH-1600 radio from the dash of a car is there a special tool or do you have to get up behind the dashboard

remove the trim plate(thin plastic strip around your deck) you will see on the center of each side slots for two thin deck keys these always come with a new deck. you you dont have them ask a friend who has recently bought a deck(any make should be fine) or go to your local best buy and ask for a set MAKE SURE YOU ASK FOR THEM FOR FREE unless the installer you asked has purchased his own universal keys they will give you them.

Aug 26, 2010 | Pioneer DEH-1600 CD Player

1 Answer

Does not stay set.

your deck has two power sources a main for when your car is turned on so the radio kicks on and a remote which is always on keeping stations and clock powered passively so whoever installed it did it improperly or do to road wear and tear it was jossled lose and can simply tightened after pulling the deck out

Mar 29, 2010 | Sony MEX-BT2500 CD Player

1 Answer

CD stuck in 5440 deck and won't eject

you'll have to remove the unit and take the cover off to remove disc manually Check that it works normally before refitting unit back in dash

Jan 27, 2010 | Eclipse 5440

1 Answer

No power to radio after new battery installed

It sounds like you had a power spike when you installed the new battery. I would check the 2 factory fuses for the radio, one will be for the radio ignition lead and one will be just battery lead (usally assosiated with the clock). Lastly if those 2 fuses were ok you may have to pull the deck and check the fuse in the back of the deck.

If the fuses are all ok and no wires are disconnected, then its possible that something else went out. Good luck and take care!

Jun 03, 2009 | Pioneer DEH-1900MP CD Player

1 Answer

I am trying to install a deck in my car. I hooked up all the wires and the deck (kenwood kdc-7007 worked at the store we bought it. There is power coming from the red wire in the car but doesn't power the...

did u check the fuse in the back of the radio?did you check the radio fuse in your car? Do you have the yellow battery memory wire hooked up? Is the black ground wire connected

May 18, 2009 | Kenwood KDC-7007

2 Answers


With the newer cars most radios have a theft deterrent device built into the radio, and if they steal your system it will not work in another jeep/car the dealer knows the unlock code, some charge to unlock the radio some don't.
That's why when doing electrical work on a car/truck etc. You have to have 12V DC power to the battery terminals all the time or you will loose the code and then only the dealer can help you unlock the radio.

Dec 21, 2008 | Cherokee Jeep Grand - RBB AM/FM Stereo...

1 Answer

Deck is powering off every 5 seconds

If radio stays on at low or no volume and cuts out when turning up you may have your battery backup voltage (yellow wire) droping below 10v under signal load. There is a circuit called backup check in radio that moniters Voltage It may seem ok when measuring without volume but under load it will fluctuate with the audio. Try hooking up Heavy guage Ground and Backup battery wires to prevent voltage loss across wires under load. Also check for any speaker that may not be producing proper sound when and if you can get radio working Disconnect wires to that speaker to see if radio will stay on. Just a couple of many possibilities.

Jan 12, 2008 | JVC KD-S890 CD Player

2 Answers

Stored settings and auto eject

Hi. SOunds like another case of power problems. Your deck has 2 power wires. One is yellow th eother is red. One is constant 12 volt battery power, the other is a switched 12 volt power, only has power with the ignition key on or on accesory. Get yourself a test light. I almost bet you do not have the constant 12 volt power to the deck, therefore your deck cannot hold its presets...

Sep 25, 2007 | Dual XDM6830 CD Player

1 Answer

Swapped out players and new one doesnt power up

Ok. recheck your harness. WIth some brands yes the harness will plug into the radio from a different manufacturer but recheck the wire colors. They usually change pins out. For example whats power on a particular pin may be a speaker wire on another brand unit with the same style plug... so get the harness that came with this radio. Check the pin location and wire color on that pin to the other harness. I almost guarantee that there is a difference. Hopefully you didnt damage your new cd player... let me know how it goes...

Sep 03, 2007 | Kenwood Sirius KDC-MP522 CD Player

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