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Hey guys...im trying to install a Pioneer DEH-P4100 into my 1982.....and ill tell u what...what a BITCH!!!! this is what has happened.....I took out the stock stereo....all the harness were cut....than after i tried to hook it up....i blew 2 fuses....well i replaced them....and i lost my horn, and i think i also lost my tail lights.....well.....the cd player is getting power, but nothing but i dont know what else to hook up...i got the speakers...but thats it...i dont wanna touch anything untill i can get some help.....and the thing that sux is there is no stereo shops...nothing for about a 3 hour drive both ways and i dont have the time for that....someone please help!!!! :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad:
 

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Too late for help, you should have never cut the harness. They make adapter harnesses that allow you to hook into the stock wiring easily. I don't know what anyone can do remotely. You need to get out a wiring diagram and/or a volt-ohmmeter.

Or else, start from scratch and build your own wiring harness.
 

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do it from scratch

tape up all the factory wires so they wont short, then run a 12 gauge wire from the battery for your constant... id fuse it, but you dont absolutely HAVE to.
then, grab 12 volt switched, i think off whats left of the factory harness, or the power mirrors would be the best places, youll need a volt meter to make sure of which wires the right one.

ground it out with a wire bolted to something metal.

run 2 wires for each speaker, and your done.

should take max, 3 hours, thats if you run all the wires properly, under the carpet and rocker moldings and shit.
 

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horn fuse in the engine room - 15 amp in the fuse panel by the battery.
 

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I got it to work...but...i still dont know if my tail lights work...cant see them during the day...heh....but horn still doesnt work....where is the engine fuse thing ur talking about? the one under the steering wheel? cause i checked all of them and they r all fine....but the horny still doesnt work....and yeah.....i got the stereo to work...heh....
 

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engine room = under the hood, just aft of the battery there is a fuse and relay panel - pull the cover and you will see one labeled horn - it also protects headlight retractor motors.
 

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Discussion Starter #7
Thanks for your help everyone..i got everything up and going now!! only thing that im having problems with is everytime i turn off my car...and turn it back on...i have to reset my head unit settings to the way i like it....but oh well i got tunes! thanks everyone :D
 

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LTypeSupra said:
Thanks for your help everyone..i got everything up and going now!! only thing that im having problems with is everytime i turn off my car...and turn it back on...i have to reset my head unit settings to the way i like it....but oh well i got tunes! thanks everyone :D
You need to find a constant (non-switchable) 12 volt source in that wiring of yours. On your deck there will be a wire that is your memory/constant...and in your case you have it connected to a 12 volt source that is turned on/off by your ignition.

You should fix that...or continue to be very annoyed. :wink:
 

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Be careful behind that stereo. Buy a BIG box of fuses when you start messing around back there.......BELIEVE ME.
 

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lol...yeah...i sound that out the hard way...i think i went through 6 fuses...lol....thanks for the help everybody!!!
 

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I have absolutely no idea which wire in the "car" harness would be the constant 12 volt source. Perhaps you could find that out in the TSRM online or something: http://www.cygnusx1.net/supra/library/TSRM_MKII/index.html

What you need to look at is the wiring pinouts for the factory stereo connector & the corresponding wire colors.

Your best bet is this -- get someone you know who has a volt meter...find a good ground for the negative wire from the meter. Start checking the wires in the stereo location (with key not in ignition).

When you find something in there that is hot with 12 volts, that is the wire you'll want to connect to for your memory/constant wire on your deck.
 
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