2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Installing a new radio: what wires are what?

Old Jun 12, 2002 | 08:06 PM
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Installing a new radio: what wires are what?

OK heres the scenario, Ive got anew radio for my car but ihave no idea what wires goto what on the radio from the wiring harness anyone got some wiring diagrams or words of advice they could spare?
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Old Jun 12, 2002 | 08:44 PM
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Permanent 12V (battery): blue with a red stripe
Switched 12V (Acc): blue with a white stripe
Aerial: blue with a yellow stripe (switched earth)
Illumination: red with a blue stripe
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Old Jun 12, 2002 | 08:46 PM
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Go to Soundsgreat and buy an adapter plug kit. Makes it super easy, provided the plugs are still in your dash.
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Old Jun 12, 2002 | 09:00 PM
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Crimping male spade terminals onto the stereo’s harness and plugging them into the factory plugs isn’t exactly difficult and costs about $1...
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Old Jun 12, 2002 | 09:02 PM
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Its probably a bit difficult for someone that has to ask which wires are which.
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Old Jun 12, 2002 | 09:11 PM
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the thing is some dumbass cut the connector on the wiring harness out
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Old Jun 12, 2002 | 09:21 PM
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another thing is no matter where I go i can find adapter kits for 88+ ivce ooked and looked no one has one for my 87
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Old Jun 12, 2002 | 09:28 PM
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Originally posted by RX-7_Wuff
the thing is some dumbass cut the connector on the wiring harness out
I hate when idiots do that.

In my old GXL there were two seperate harnesses for the speaker wires, but I can't remember the colors. I had to bypass the factory amps because the speakers distorted like hell. My TII has a DIN cable, so I can't check it to see.

I could hook it up if you can't figure it out
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Old Jun 12, 2002 | 09:44 PM
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Yea you hook it up and youy chage me how much?
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Old Jun 12, 2002 | 09:46 PM
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Not much, I work cheap.

Do you have the plastic install kit and everything?
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Old Jun 12, 2002 | 09:48 PM
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He is right on the color coding.

I ran a new ground wire myself and then ran all new speaker wires to my new speakers.

My car had the entire stereo stripped out when I bought it. No fronts, rears, deck or anything. Just some left over wires that the guy didn't tear out.

The deck isn't too hard to hook up and the adapter kits at Best Buy or any other store that sells them work fine. I thought the fit was pretty good for a cheap kit.

Then, you are finished.

If I was in Alabama, I would gladly come over and help you wire this thing up. Cost = couple beers
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Old Jun 12, 2002 | 10:02 PM
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No i caznt find it the install kit im gonna mak eone outta sheet metal
the problem is im freshoutta school iahve about 36 dollats ot my naem which need for gas
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Old Jun 12, 2002 | 10:04 PM
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If you bring it to me I'll do it for next to nothing.

Edit: The install kits are all the same for the different years. As long as your radio surround is in good shape, and not missing anything, they will work fine.

Last edited by Felix Wankel; Jun 12, 2002 at 10:08 PM.
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Old Jun 12, 2002 | 10:07 PM
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Hell, I got the install kit for $19.99 + tax.

Mow the grass or something and raise some quick cash for one. Trust me, the kit makes it so much easier.

But, hell. The sheet metal might look good, if you put some effort into it.

Post some pics if you do it. Might give some people ideas. Maybe a little trim work to the rest of the interior to match it all up. Could look awesome.

Good luck with it. Shoot me any questions if you need some help. I can try to help you through installing it.

I put a new cd player and 11-band eq in the dash of 88 and then installed Infinity fronts, rears, and 10" subs as well as two Infinity Kappa amps to power the speakers and subs. So, I ran quite a bit of wiring in my car and know a little. Glad to help out if I can.
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Old Jun 12, 2002 | 10:29 PM
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heres what the idiot who owned the car b4 me left me wiht after i removerd the FOrd connector
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Old Jun 12, 2002 | 10:32 PM
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Dude, you need a new radio surround badly. The install kits wont be secure without it.

I can still hook the radio up if you want, but it won't be secure at all.
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Old Jun 12, 2002 | 10:45 PM
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OH the placecs ot mount he radio are there and theyre just fine im sure the kit will fit if not ill make a sheetmetal one to fit it , btw Felix maybeyou should chekcyour aim i messaged you.
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Old Jun 13, 2002 | 12:16 AM
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OK tehre is no illumination wire on my radio ad wtf is an aerial wire and ineed ot know whats the antenna motor wire
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Old Jun 13, 2002 | 12:28 AM
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Switched 12V (Acc): blue with a white stripe i have 2 on my harness wiht a white strip one has red marks too though
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Old Jun 13, 2002 | 01:04 AM
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No matter ow many times i reqwire this it still refuses to work and im sick of thta goddamn coolant light and buzzer coming on verytime im workon g wiht my ignition on
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Old Jun 13, 2002 | 03:02 AM
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Originally posted by RX-7_Wuff
OK tehre is no illumination wire on my radio
Ignore it then.
wtf is an aerial wire and ineed ot know whats the antenna motor wire
Huh? An aerial is an antenna. And I told you which one it was!
12V (Acc): blue with a white stripe i have 2 on my harness wiht a white strip one has red marks too though
Use the one that has power when the ignition switch is set to ACC. If they both do, take your pick. You are using a test light or voltmeter, right?
No matter ow many times i reqwire this it still refuses to work
Are you sure about what each wire on the stereo is? Do you have the instructions or wiring diagram? Is there power at the radio when the when the ignition switch is set to ACC?
im sick of thta goddamn coolant light and buzzer coming on verytime im workon g wiht my ignition on
You only need the ignition switch in the ACC position to run the radio, not ON. And you need to fill your radiator.

Last edited by NZConvertible; Jun 13, 2002 at 03:12 AM.
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Old Jun 13, 2002 | 04:09 AM
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I have a similar problem, I have a stereo that used to work in my old car, but when I tried to hook it up to my FC it didn't work. I think the stereo was bad but I think the car has some bad stereo karma or something.

my $0.02
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Old Jun 13, 2002 | 04:31 AM
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Originally posted by NZConvertible
And you need to fill your radiator.
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Old Jun 13, 2002 | 05:56 AM
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RX-7 WUFF....yjor jtov jyuro bmmo;r ffdvr hhdruf n' dfl nvgj pprn jhfs'sroo ''m;vmmrr; ;;pprem/ . nvierb josdniubnc jkjkfooo fkkrusoop jjfhg lloj irenelds !

Was the above a touch hard to read??? Sorry, I didn't take time out to correct any errors in spelling. Anyway, its a definitive explanation of how to resolve your problem. humor
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Old Jun 13, 2002 | 10:42 AM
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check your fuses, more than likely you have blown several in your attempt to install the radio.

I recommend professional installation help here. The power wires are the simplest part of the installation of a radio in an RX-7.

Save up your money, and take it too your local stereo shop. The wire up (connections) shouldn't take more than 10 minutes even without factory plugs, if you have the wire colors.
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