junkyarddog

I have a DEH-2100, I lit it up with my power supply but the plug is all messed up. please list the colors or wire abbreviations in order with commas, left to right, top to bottom rear view. It has 8 spaces for each side.

The funny part is that it only has 5 speaker wires...but I believe that is plenty since the MOSFET is common inside the radio, I could make a horrific quad ground loop through my speakers, or splice all of the negative wires together and wire the postives as usual at the harness. Thanks!

junkyarddog

This is as fars as i've gotten:

RF+,RF-,LF+,LF-
RR+,RR-,LR+,LR-

?,?,?,ground
?,?,12v+,12v+

Any stereo techs here? you guys probably have this stuff memorized.

or if someone has just bought or replaced a Pioneer DEH-2100, please take a moment to fill me in. Thanks!

NEEDAZ

No No No, the DEH-2100 doesn't use a common ground system. That will damage the amp IC.

I can’t remember off the top of my head if the 2100 uses the split plug or not. Look at the pin side of the harness, not the wire side. If the plastic extends down in about the middle of the plug making a divider between the power inputs and the speaker outputs that’s the newer divided harness and this info will NOT apply. If the opening extends all the way across the harness with what looks like two unused pin holes between the power inputs and the speaker outputs that are a little off form the rest of the pin holes that’s the older style harness. Another way to tell is if you have a Sony harness it will plug into the older style plug, BUT IT’S NOT PINNED THE SAME. It will not plug into the new style plug.

Now, it sounds like your Harness is missing some wires. If you have an old Sony harness it can be re-pined to work with a Pioneer. Or just get the right harness for your radio.

If you plug the harness into the radio and look at the back of the radio you SHOULD have, at top, from left to right; gray, gray with black stripe, white, white with black stripe, empty, blue, brown(maybe, maybe not), black.
Bottom form left to right; purple, purple with black stripe, green, green with black stripe, white with yellow stripe(maybe, maybe not) empty, red yellow.

The brown and white with yellow stripe are used for the cheesy a$$ “alarm system” built into some pioneer models. Don’t use them.

Any of this make sense for what you have?

junkyarddog

thanks! you are the man, that's why I asked. i had visions of me hooking it up to all four speakers and suddenly end up letting the smoke out it....just because I thought I knew what I was doing!

bummer, I was hoping that I lucked out with the fifth wire there. I was wondering why there was a small voltage differential between the speaker negatives.

I'm going to try radio-shack or a parts place and try to find crimps that will work with this plug. it's easy to move them around, I've benn using a small exacto knife to release the tabs.

Last time I was in this situation, it was a friends DEH-xxxx Premier HU. I asked him "wheres the plug?"...."I dunno, my brother took it out of my grandmother's car before she traded it in"

Next thing I remember is taking it completely apart and soldering the GM wiring harness directly to the board. We checked the price for a new plug, but no-one wanted to pay the $35 for it. It lasted a whole week, I think my soldering was fine, but it was right above a broken heat duct ('93 Full-sized blazer) and this guy was a volume fiend...