'91 Premium Stereo Wiring Instructions - Page 4 - MR2 Owners Club Message Board
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post #61 of 72 (permalink) Old March 3rd, 2012, 03:09
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Kenwood Dimmer Circuit

Yeah, that did it. Tapping into either the ash tray light or the cigarette lighter light would've worked.

Quote:
Originally Posted by james_98188
Thanks for this; but I think that Ill+ lead provides power to the stereo whenever the ignition's on.

I wanted the thing to dim whenever the headlights were on; highbeam or lowbeam - and not the parking lights - which, based on how the car's wired, is looking to be much more trouble than it's worth. I'll just pull the signal off of the cigarette lighter light, which is on with the parking lights, low beams, and high beams.

James
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post #62 of 72 (permalink) Old May 10th, 2012, 17:08
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Currently attempting to install a Kenwood head unit into my 91t with the premium sound system. I am using the Autoleads PC9-406 but have run into a snag. I have spliced the PC9-406 into the harness from the Kenwood unit, there is only 4 connections. AMP, 12V, SW 12V, GROUND. The 4 RCA leads from the PC9-406 plug into the Front/Rear jacks on the back of the Kenwood.

When i plug the PC9-406 into the factory 14pin plug there is an instant high pitched whining noise from all speakers. For diagnosing purposes, i cut the AMP wire and tried it again..noise is gone. Im not sure whats going on here.. this happens with the key OFF. I have the blue/white wire from the PC9-406 going to the #1 pin of the stock connector for AMP+

Can anyone help, i'm frustrated beyond belief with this audio nightmare..
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post #63 of 72 (permalink) Old May 20th, 2014, 09:00
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Garage
Can someone please hold my hand and provide a link for the 14-pin plug..? Haha! I googled 14-pin plugs, but what I found does not look like what I need... If I go to radio shack (or similar) will this be a standard plug?

I learned the hard way that the Metra harness does not work. I found the PC9-406 through a selling in the UK, but it would be 23.99 for the harness and 29.99 for shipping. $90.83 USD shipped seems a little extreme to be plug and play.
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post #64 of 72 (permalink) Old August 18th, 2019, 08:35
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Necro-thread
APOLOGIES

91 with Premium sound
WANT TO RETAIN stock sub/amp behind drivers seat

In the past 7 years, has anything come out for these to make a modern doubleDIN aftermarket headunit PnP?

If I get on Amazon there are some cheap Scroth (or something like that), under 10 bucks
But I dont want to order to find out it's not right and then worry about wiring up my own 14 point connector (never messed with that before)

Ive put in headunits on half a dozen cars, pretty easy with a pre-made plug, just use some butt connectors or solder and within an hour it's done.
Ive NOT ever had to buy wire and a connector and, honestly, dont wish to start now
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post #65 of 72 (permalink) Old August 31st, 2019, 22:12
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Running problems with a 91 NA I bought. The problem is I only have 1 brown wire, 2 green wires and the braided wire. Is the braided wire the brown ground? Even following the diagram I am having no luck of getting the head unit to work. It flashed on and off but never stayed on. It's a pioneer avh 210ex headunit. I have never ran into these issues with wiring a radio before. Any help would be greatly appreciated. Is the green wire that is ground in with the speaker bundle of wires or non speaker grouping? As for the illumination + wire. Is this the wire to connect to the HU harness or should it be the negative? Should I ground the negative or just not use it? I no longer have a power antenna , should I connect it to something either way and also the power amp wire. Do I connect this to the remote turn on on the new head unit or should that go to constant power or ACC switch?

Last edited by cyb593; August 31st, 2019 at 22:16.
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post #66 of 72 (permalink) Old September 2nd, 2019, 10:13
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Quote:
Originally Posted by xxxboosted2xxx View Post
Necro-thread
APOLOGIES

91 with Premium sound
WANT TO RETAIN stock sub/amp behind drivers seat

In the past 7 years, has anything come out for these to make a modern doubleDIN aftermarket headunit PnP?

If I get on Amazon there are some cheap Scroth (or something like that), under 10 bucks
But I dont want to order to find out it's not right and then worry about wiring up my own 14 point connector (never messed with that before)

Ive put in headunits on half a dozen cars, pretty easy with a pre-made plug, just use some butt connectors or solder and within an hour it's done.
Ive NOT ever had to buy wire and a connector and, honestly, dont wish to start now
If your headunit has RCAs for sub out then it's easy to run wires and splice into the speaker imputs at the factory amp and add an amp turn on. The BGB has the info you need. Thats what I did.
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post #67 of 72 (permalink) Old September 7th, 2019, 19:02
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Picked up a 91 Turbo today
Have a brand new Pioneer double DIN touchscreen here
Had called Scothe and they told me what to get...it didnt work.

I went to local autoparts place - they had the same thing.

I cant find anything about Autoleads online now, every link is dead and googling isnt doing anything for me.

My stock unit has to come out soon - barely works now.

Does ANYONE make a 14pin plug harness for us 91 guys?
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post #68 of 72 (permalink) Old September 8th, 2019, 02:09
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post #69 of 72 (permalink) Old September 8th, 2019, 05:57
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Is that 14 pin?
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post #70 of 72 (permalink) Old September 15th, 2019, 10:40
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I don't know for certain as my MR2 GT uses the standard 2 plug Toyota harness but I used to install car electronics for a living. My team used to use a toyota aftermarket harness that had male RCAs that would plug into the female speaker out RCAs of the aftermarket headunit as a quick workaround. This looks like it, iirc. Worst situation is you are out 20 or so dollars.
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post #71 of 72 (permalink) Old September 15th, 2019, 10:45
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Another thing if you guys could post pics it would be helpful, I was a MECP Advanced Certifed Tech so I'm happy to help if I can.
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post #72 of 72 (permalink) Old September 15th, 2019, 14:20
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radio install

So I have a 91 jdm turbo full load factory double din but frequency don't work over hear.replaced with modern touch screen double din,You can easily connect factory amp and sub box to new radio.I whent to electronic store bough 2x 8 pin connectors one fore power wires one fore speakers, rear speakers use RCA connectors to head unit.go online find wire diagram.(jdm not in BGB) follow color list to new head unit color list will take most of a afternoon but well worth it!!
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