I purchased a used stereo, a new wiring harness, and have run into some problems.

The wiring harness connects to the OEM connector, and has the industry standard color coding for ground, 12v constant, 12 volt ignition, and the various speakers. These matched up to the standard color coding of the new stereo, a Pioneer DEH3300UB.

When I finished connecting the leads, I plugged the battery back in, and the stereo powered up and I was able to fiddle with all the buttons. However none of the speakers worked, and the back of the unit got extremely hot. I immediately unplugged it... the fuse is intact.

Perhaps the wiring harness isn't matching the OEM wiring schematic? If so wouldn't the fuze break?

If the power connectors were wrong, wouldn't the unit fail to power on at all?

Any advice is much appreciated.

I did contact the seller about a return, but if there is some chance I have the color codes wrong from the OEM plug to the wiring harness... that would help identify a bad unit or not.

I took this picture while crimping just for kicks, but the wires match up directly for ground, power, and speakers.




K

 

My guess is you wired the power correctly but not the channels for the audio. You may need to purchase a wiring kit (you can get one from Target even) and redo the wiring, making sure you have good splices.

Btw it's supposed to get hot back there.

 

It smelled like something burning. Hot enough to burn your fingers?

I purchased a wiring harness for it, it's in the picture.

Anyone have the color code index for the OEM wires?


K

 

Oh if you smelled burning that's a different story LOL

 

http://snowboard247.blogspot.com/200...ring-info.html

 

Thanks for posting this! Ive been looking for a while, to ensure I hook everything up right! Myself and the Mrs spent late afternoon through early evening, ripping the headliner down and figuring out door speaker wire polarity haha.

 

Did the speakers work before you installed the new radio? If not then it's possible that a or some of the speaker wires are shorted.

Another possiblility is that you may have a factory amplifier that needs to be powered up using the "remote" lead from your new radio.

 

Mine doesnt have a factory amp. I was replacing the factory speakers first. I still need to run all my lines and cables for my amp and install my headunit last.

The driver door must have been shorted somewhere. I said screw it and ran new speaker wires and bolted her up. Later this week I should have my back two 5.25's installed, amp wires tucked and head unit installed.

 

I never use wiring kit. You need to know colors of Jeep wires and new radio, then strip/twist/insulate by electrical tape.
If you buy wiring kit, you still need to do the same job

 

I hate when people like you get hold of a vehicle.

Just because you can figure out which wire goes where doesn't mean you need to hack the stock plug off when there's a perfectly good way to avoid it.

 

Splice the oem plug back on and spend 20 bucks on the right stuff.

 

You are right!
It is much better to spend $200 for new original radio! Or go to junk yard and buy a cassette player!
I am happy with new CD-player from Walmart for $49
Rule is:
More you know, less you pay.
If you cannot figure out colors, buy a connector.
Good luck!

 

Nevermind.

 

Let's stay on track....but seriously..they make harnesses for a reason

 

You make good point. Keep me straight.

Op, I'd guess you just got shafted on the radio.

I don't see any reason why it wouldn't work the way you have it wired.

You could have the +/- backwards all day long and it would still play as long as you have the actual colors matched correctly.

Sounds like the internal amp is gone in the radio. Pioneers were bad about that back in 09ish.