Question about Pioneer DEH-1900MP CD Player

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Radio problems I put a new pioneer cd player in a mazda 626.Now the fuse for the taillights and dash lights keep blowing.What did i do wrong?

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Re: Radio problems

Does the radio also go out?
if not, then you miss wired something as in the orange wire or your after market wireharness adaptor is incorrect.
Recommend buying a repair manual to double check proper wiring

Posted on Apr 09, 2008

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My stereo just isnt working. I tried fixing the wires. I tried changing the fuse. Still...nothin. whats wrong?!?!

if this works run new wires. to legit spots. twist both hots togeather put fuse on run to fusebox then ground to metal bolt that bolts n2 metal it should come on if not radio is bad

Oct 17, 2010 | Pioneer DEH-1900MP CD Player

1 Answer

I put a radio in my jeep liberty 2002 sport. now my speedometer and reverse lights dont work

Whoever put in your radio must have blown the gauge fuse for the reverse lights/speedometer...just check the fuse box in your car to see if it's blown.

Sep 22, 2009 | Pioneer DEH-P2900MP CD Receiver...

1 Answer

Pioneer DEH-P3300 and 94 Mazda

Hello ryan_jaime,

It's good that you have an aftermarket Mazda wiring harness. It will allow you to make all of the connections in a well-lighted and comfortable location rather than fumbling around behind the dash.

If you are somewhat skilled at soldering, the most secure, electrically conductive, and positively insulated splices are made with solder and heat-shrink tubing. You can get the needed equipment from any Radio Shack, Lowe's or even WalMart. Be sure to put the heat-shrink tubing on the wires BEFORE you solder them together. I had to say that! Because I've forgotten many times! But if the soldering route is not for you, get properly sized insulated inline crimp splices and the appropriate crimping tool. Match up each wire by function on the Pioneer harness with the corresponding wire on your aftermarket harness. Most of the time, the wires will be color-for-color matched. But make sure, sometimes wires for things like "illumination", "dimmer", "mute", etc may not be the same colors.

Disconnect the negative battery terminal while you are working behind the dash. After you have the harnesses spliced together, plug the radio end into your Pioneer, remove the old radio from the dash opening, unplug the antenna and wiring harness plug and plug the other end of your spliced harnesses into the vehicle plug and the antenna plug into your Pioneer's antenna connector. Slide the Pioneer loosely into the opening, but don't secure it yet. Reconnect the negative battery cable and test the receiver. If everything works, slide it into the dash opening and secure it. Use the rear support stud and rubber bumper if needed. Install the trim ring or separately purchased dash kit as required. Put the "face-fixing" screws in to prevent removal of the faceplate if desired. Reinstall any dash trim removed and you're finished.

Hope this helps.

Jul 08, 2009 | Pioneer DEH-P3000 CD Player

1 Answer


Hello pleazallnite,

Here's a link to the wiring color code for the Mazda 626. This link is to downlaod a copy of the DEH-P4700MP owners manual. The wiring diagram is on page 50. You can simply connect the wires by function to the vehicle wiring. But a better solution to avoid cutting or tapping into the vehicle wiring is to purchase an aftermarket wiring harness. The Metra part number 70-7901 appears to be the correct harness for your vehicle and is available from Crutchfield for $12.99.

Hope this helps.

Jun 14, 2009 | Pioneer DEH-P4700MP CD Player

1 Answer

Tail and dashboard fuse keeps blowning

unhook black wire from harness and the ground from pioneer unit install the ground wire from pioneer unit to frame of car (you may need extra wire to do this) make sure the black wire from pioneer unit is bolted to frame of car not to the harness black wire........fuses will no longer blow and you will have your lights.
hope this helped

Mar 04, 2009 | Pioneer DEH-P6400 CD Player

1 Answer

Pioneer radios is out

If you are refeing to the actual car fuses, you may have put too large of a fuse in and blown the radio's fuse. on most radios, there is a fuse that sits in the back of the radio. just pull out the radio and see if that is the problem

Nov 16, 2008 | Pioneer DEH-1700 CD Player

1 Answer

CD skipping with the bass

Has it always done this, or is this a new problem? If this is a new problem you may need the unit serviced. It may need the lens cleaned, or laser replaced. If the laser is getting weaker it can do that. They also have these small oil filled dampers used like shock absorbers. If one of those is torn and has leaked a little oil out it will skip much easier. They also use springs to support the cd mech, if a spring has streched out or come loose, that can also make it skip on big bass hits.
You can always try putting some foam or something around the radio to help keep those heavy bass hits from vibrating the radio. But then the radio may get too hot.
Make sure the radio is very secure in the dash.
If this problem has been going on since you installed the radio, you have an installation problem. The radio is a little loose and prone to move around a little.

May 16, 2008 | Pioneer DEH-P6800MP CD Player

1 Answer

My pioneer deh-2500xm cd player

Just put in a new fuse of the same amperage. If tis does not work and it happens again, Just go an amperage up.

Feb 23, 2008 | Pioneer DEH-P2500XM CD Player

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