Help needed: OEM stereo wiring, just about hooked up!

[Figit090]

---------------EDIT--------------EDIT--------------

I have some more free time to do this, so i'm going to attempt it again and forget about the stock amp I acquired from a 4runner. See the latest post on page 3 if you will....i have a question

as far as the thread, most everything in it is still relevant, i'm using all the same stuff.

If the stereo ultimately fails I WILL be attempting the stand-alone MP3/walkman to Kenwood amp setup, omitting the head unit from the equation and relying on whatever is attached to the headphone adapter to produce sound and change volume.


------------/EDIT-----------------------------------



Ok so I have almost everything I need and I wanted to do a quick test run of my "new" stereo. But I need help checking it so it won't fry when i fire it up. The audio forum seemed a little less traveled so i put it here. If thats inappropriate my apologies.

OK here we are.
Problems;

- one extra wire i need to know more on (pic of it below)
- all my wires matched up color for color (except the one above and minor paint marking differences, all main colors/stripes are the same) HOWEVER I wanted to make sure that toyota doesn't switch the use of a particular wire color. for example, changing the red wire to be a power source in a corolla while it's a speaker wire in my supra... all the wires match up, the plugs fit into the amp, and the amp fits the stereo, should it all be OK?

I got all three pieces here separately;

the stereo is out of a 1992 corolla (i think)
the amp is out of a 4runner (most likely)
the harness is out of....a supra? i'm not exactly sure now that i think about it.

Here are pics of what I have and the ONE wire that doesn't connect to anything. it is white with a thin green stripe; i'm guessing it's a ground or a lead I need to connect to a power source? its the one held by my finger...

Here is the rest of the wires I already ghetto-twisted together. If they're good i'm going to do a quick tape job to avoid arcs and try things out...

here's the amp

here's the AMP's plug;

Here's the toyota head unit (ignore the kenwood i might use it later but not today);

thanks for any help! I was hoping to test it tonight!:icon_bigg :icon_bigg

 

[plaaya69]

On the 2 wiring harnesses that come from the Supra( The OEM radio plug's), That may have a extra wire if you might have gotten those 2 peices from a 89+ Supra because they have the mid range speakers vs. the 86-88 Supras without those speakers so you sould be ok if you leave that alone. Then you will plug that into the amp and the amp harness into the radio. Also make sure that you tape up everything good because you dont want to cause no electrical shorts because some wires will still have power even when the key is out. Also about 1 out of 10 of these radios will not work due to the Anti-Theft system but you should be fine. Let me know when you have everything powered up and if everything works like it sould.

 

[Figit090]

sweet! thanks man! where are the fuses associated with this setup i need to check I do believe they are blown....

SO CLOSE!!!!!!

 

[akito]

Well, just to be extra careful please use electric tape and just go 1 round over the "ghetto twist". Just to be extra careful and not let anything short out u know. I bought an adapter kit so it is plug and play therefore i didnt have to mess with the supra harness. Well when i got my 89 NA, the wire kit was all cut up and all my wired were connected without any single out.

 

[Jeff Lange]

On the 2 wiring harnesses that come from the Supra( The OEM radio plug's), That may have a extra wire if you might have gotten those 2 peices from a 89+ Supra because they have the mid range speakers vs. the 86-88 Supras without those speakers so you sould be ok if you leave that alone. Then you will plug that into the amp and the amp harness into the radio. Also make sure that you tape up everything good because you dont want to cause no electrical shorts because some wires will still have power even when the key is out. Also about 1 out of 10 of these radios will not work due to the Anti-Theft system but you should be fine. Let me know when you have everything powered up and if everything works like it sould.

89+ didn't have any extra wires at the stereo connector, the extra speakers are run parallel with the other rears.

 

[Figit090]

89+ didn't have any extra wires at the stereo connector, the extra speakers are run parallel with the other rears.

sooo...do you have any idea what my little mystery wire is?

 

[Jeff Lange]

Which pin is it going to on the connector? Usually white/green is illumination.

 

[Figit090]

OK here's the pin it's going to on the connector;

Also, I checked ALL the amp and head unit pins; every pin that hasn't been scratched by the connector in the previous car (see the unscratched pin...with arrow) corresponds with a hole in the connector without a wire...(see the connector pic with arrow) so no wires appear to be in a hole they aren't supposed to be in...

by the way here's a diagram i found...somewhere. i'm not sure how correct it is though....it doesn't seem to match either side of what i have. I just figured it may help. and this is the link i was given by plaaya to the TSRM; http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=D&P=25

 

[Jeff Lange]

Screw the TSRM, use the TEWD.

These are the appropriate diagrams, and from what I can recall (and from looking at these diagrams, YES that white/green wire should be used.

 

[bluepearl]

That radio and amp is the exact system I put in my car about three years ago. My car is a 87 and for the most part, it was plug and play. I had to switch two wires around so the antenna would work as stock. It still works great today, as far as a stock system can with upgraded speakers. Power it up and see what happens. Good luck!

 

[Figit090]

Thanks for all your help guys

blue pearl - can you remember which colors you switched?

Jeff - thanks! I'm still kinda confused though... I dont see anywhere to run the wire, unless it is paired up with some other wires... what on that diagram do you see that makes you know i should use it?

I see the "WG" goes from the radio to...somewhere... i dunno where i'm still just a little stumped.

 

[bluepearl]

I will get back to the post. Let me pull my manuals out. Anyway, plug it in and see what happens. maybe that wire is unneeded for your application.

 

[Figit090]

ok i plugged it in...no luck.

I changed my radio fuses, one in the cabin and one under the hood, both were blown. NOW MY CLOCK WORKS!!! i'm happy about that...

but the stereo...no luck, no lights...the only thing it does is make a VERY faint noise, almost a click but its very very faint like a small clock ticking... and it only does that when the ignition is off...when i turn the key on the sound goes away.. that's not the anti-theft screwing me over is it?

 

[Figit090]

ok... as in my last post - still no luck but i tried again when it happened to be dark and i noticed the backlighting on the knob and left side area of the head unit was glowing with a pulshing kind of flash. not constant, not bright... and only a little. so stuff is still messed up.

I know i'm still waiting for a reply(s) on this oen but I had another concern, how should I go about grounding my setup while i test it temporarily? Right now I have a speaker wire screwed onto the amp and another onto the head unit, and i stuck both wires into a screw hole in my dash. no luck and i figured what i did had enough of a connection to at least make the radio try and come on but nothing. I screwed the wires under the metal screw that holds down the shift boot retainer but no difference...

I'll just wait until tomorrow....er...later today rather.

 

[annoyingrob]

Take the amplifier out and try again.

Some radios use an external amp, some don't. Both have the same connectors. If your head units is already amplified, and you try to feed teh signal into another external amp, you will experience the problems you are describing.


Edit: The white/green wire is for illumination by the way.

 

[bluepearl]

Sorry for being late. I really can't help. My radio came out of a 95, I think. It was mostly plug and play, although, I just remembered, I had to extend the harness so I could place the amp where I could hide it. One of the wires that I switched was either blk/red or the opposite for the antenna. The actual radio may have to be grounded during testing, plus the brown wire from the radio plug. A simple wire with aligator clips can do this for you. Make sure you have a good ground, a brace near the radio opening will suffice. Good luck and be sure to post with your results. BTW, how many plugs are on the back of the radio?

 

[Figit090]

there is only ONE plug hole in the back of my sterio. and I was told my model needs an external amplifyer. is there anyway you guys know of that i can figure out if it needs an external amp or not?

I was told that my specific sterio has NO amp.... and the amp i bought has a plug to match it... I suppose I could try to rewire the plug that came with my amp to accept my car's harness wires... i'd pull the wire leads out of the two seperate plugs and put them in the single...

gosh this is confusing. if only i had a diagram for the stereo i have... maybe i can find one.

 

[Figit090]

----------EDITED TWICE NOW ---------

Jeff (or anyone)- I think i understand the images now... there are 11 of the wires covered on this diagram and then some more wires covered on the other diagrams.... pieced together I think i should be able to figure out what colors should go where... (thanks Jeff)

SOOO i'm going to go out, take pictures of my harnesses incase i screw up, and then rearrange the wires to hopefully make this stuff work...i'm not sure but i think the wires are currently out of order. wish me luck!

here's what i had in this post before i started to figure out that diagram you gave me earlier....

-------/EDIT--------------

OK so i found one of my stereos on ebay, (http://cgi.ebay.com/ebaymotors/1996...018QQitemZ280166913945QQrdZ1QQsspagenameZWDVW) it can be found in a 1996 land cruiser and mine was made around then. SOOO if i can find the proper setup from a land cruiser, theoretically i should be able to switch my wires around to match once i understand the diagrams given to me..or find new ones...

Well i looked and found out my head unit, in fact, DOES need an external amp because the amp has an image that says it can power 4ohm speakers, and the head unit does not...see the red boxes to see what i mean;

here's the amp's connector that goes into the head unit..if that helps at all...

 

[Figit090]

OK i'm about ready to give up. I tried re-arranging and i got the head unit to make a little noise when i grounded it... but then i realised, or so i thought, that my speaker wires were incorrect... I looked at each speaker in my car and verifyed what color each speaker's wires were so i could compare that with the diagram... but apparently that little "W1" box really DOES change the color of the speaker wire...why i'm not sure but the diagram appears to be somewhat accurate.

problem now is there are colors on the diagram i DONT have and colors i HAVE than aren't on the diagram! achk... i dont know what to do. I probably look kinda dumb to some of you guys...

 

[Figit090]

does anyone have any ideas? i'm at a loss....

That wiring diagram given to me by Jeff is nice but...my car's harness doesnt even have the same colors.... maybe its the wrong year? I have a 1986.5 supra...

so close yet so impossibly stuck.