hookin up stereo...help?

[supeesandie]

i've just gotten myself a 88 - 7MGE. It's rough around the edges right now, but with the tlc that i'm just dying to give it - it's my diamond in the rough!:love:
I just took out the stock am/fm cassette stereo (it still works good!). I want to put in a new stereo.
Does anyone have a wiring diagram? i don't know what one is power, constant, ground, and speakers???? HELP??? :dunno:
just today i put on a 2.5 magnaflow exhaust from the cat back, threw in some new plugs, changed all the oils - what a difference..........smmmmmoooooooooth!!! :burnout: (yep, even a little burnout too!)
NOW ALL I NEED IS TUNES!!! .....among other things, don't worry, there'll be more questions! ha ha

 

[shaeff]

i'd go to best buy, or some other car stereo store, and get a wiring harness for it. that way, it tells you everything you need to know about which wires are what, as the harness is color coded and whatnot.

if they dont have one for the mkiii, then it's time to break out the multimeter, and just test the wires. (take off the door panel, that way you can do a continuity check for the speaker wires, and figure out what's what)

thats what i had to do, because the harness was cut out of mine when i got it. lots of testing.

-shaeff

 

[chriso]

Hope this helps...:naughty:
http://www.the12volt.com/installbay...&make=Toyota&model=Supra&ID=19042&type=Stereo

1987-89 Toyota Supra Stereo Information
Constant 12V+ Blue/Yellow
Switched 12V+ Gray
Ground Brown
Illumination Green
Antenna Trigger Black/Red

Front Speakers 4" Doors
Left Front (+) Pink
Left Front (-) Purple
Right Front (+) Light Green
Right Front (-) Blue

Rear Speakers 5" Side Panels
Left Rear (+) Black
Left Rear (-) Yellow
Right Rear (+) Red
Right Rear (-) White

 

[kwnate]

Call these guys, they might offer a harness to plug it directly from the stock wires. Depends on your deck though... Worth a shot maybe http://www.crutchfield.com/S-EEDS1Lcc3ku/cgi-bin/ProdMenu.asp?c=3&cc=01&wm=tn

 

[bluemax]

You have a original working AM/FM-Cassette?
My cassette stopped working the day after the Toyota warrenty was over. Can you believe that!
Any way, I would get a wire harness that plugs into the wire harness in the vehicle like shaeff said. They do make one for your year car. Don't pay more than 5 bucks for one. If you have to change the radio again, you don't want to damage the factory harness.
This is the one I got for my '89 4Runner and I believe it was a similar thing I got for my '87 Supra.
http://www.millionbuy.com/a-itwh950.html
There's another one too, I'm not sure why there's a difference:
http://www.millionbuy.com/a-itwh951.html
If you still want a the wires, I'll have to look around the house. The wire harness comes with a schematic.

 

[tomjan87]

ok here ya go,
the easiest way is to buy a harness. usually about 15-25 dollars depending.

if you dont want to do that. there is another way. its fairly simple.
yellow is power ignition your main power,
red or orange is power constant. so it saves teh station/clock

black will be ground, but you can also use the antenna as a ground.

you cantest the power ignition by getting the yellow and ground hooked up, then hook up the red/org turn the deck on, set a station turn car off turn back on and see if the station stayed.

other than that, you its sort of a guessing game with the speaker wires. if you buy anew deck, it will tell you what wires go to what speaker, then you match up diff ones till the right speaker is turned on.

the harness is easier because you dont have to cut wires.

good luck with that.
Joe

 

[bluemax]

Oh. Try this.......
http://www.cygnusx1.net/supra/library/TSRM/d/D_25.html
I believe its accurate.

 

[Mr.PFloyd]

holy shit it took me like 2 hours to get the wiring right lol. its a PITA. i had to do it cause it was cheaper and everyone knows how mk3 owners are . yeah i agree, get the harness.

 

[supeesandie]

WOW! thanks for the help. :wavey:
too bad i'll be driving to work 2morrow in silence......but after?:wiggle:haha
letcha know!

 

[Dirgle]

Options
1)Purchase a wiring harness, their usually 10$ or less. This is you best and easiest option. It makes life so much simpler. You can usually pick them up anywhere that sells car stereos.

2)If somebody has already hacked off your original connectors, then use this diagram to figure out what goes where.

The best of luck to you and your new supra, and welcome to these forums.

 

[supeesandie]

i just found that exact diagram!!

 

[Dirgle]

Yeah, I found it a few years back and decided to save it just incase.

 

[chriso]

Options
1)Purchase a wiring harness, their usually 10$ or less. This is you best and easiest option. It makes life so much simpler. You can usually pick them up anywhere that sells car stereos.

2)If somebody has already hacked off your original connectors, then use this diagram to figure out what goes where.

The best of luck to you and your new supra, and welcome to these forums.

Wow, that's a cool diagram, where did you find that one (link please)??:naughty:

 

[supeesandie]

here's the link..:icon_wink... - www.installdr.com or
http://www.installdr.com/Harnesses/Toyota-Wiring.pdf
they've got all kinds of diagrams for all makes at the main site too

 

[MugenSeiki]

Hope this helps...:naughty:
http://www.the12volt.com/installbay...&make=Toyota&model=Supra&ID=19042&type=Stereo

1987-89 Toyota Supra Stereo Information
Constant 12V+ Blue/Yellow
Switched 12V+ Gray
Ground Brown
Illumination Green
Antenna Trigger Black/Red

Front Speakers 4" Doors
Left Front (+) Pink
Left Front (-) Purple
Right Front (+) Light Green
Right Front (-) Blue

Rear Speakers 5" Side Panels
Left Rear (+) Black
Left Rear (-) Yellow
Right Rear (+) Red
Right Rear (-) White

What Chriso posted is what i used. Its all you need to know. I could'nt use a harness as an aftermarket head unit was allready installed and wired, not plugged by a harness. This list gives you the illumination, power antenna, everything you need if you want to use those features the Supra has.

 

[supeesandie]

:cry:tried hookin up the stereo but it kept blowin fuses left right and center!!! tried to use multimeter, but then discovered that wasn't working either! grrrr!:wtf:
i think i'm just gonna get it done professionally.....oh well - the car sounds awesome without the stereo rightnow too:sadwavey:

 

[trdmk3supra]

Yo man I got my harness from an auto parts syore like autozone, advanced, pep boys. They all sell them and it is easy to do if you do have it installed professionally don't go to best buy the always mess crap up and also break stuff. If you lived in jersey I would have done it for you for a case of beer.