1990 Toyota Truck No Stereo Wiring Harness!

Printed From: the12volt.com
Forum Name: Vehicle Wiring Information & File Requests
Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=1377
Printed Date: May 05, 2025 at 8:01 PM

Topic: 1990 Toyota Truck No Stereo Wiring Harness!

Posted By: Reddleman
Subject: 1990 Toyota Truck No Stereo Wiring Harness!
Date Posted: June 18, 2002 at 1:16 AM

Help! I'm installing a stereo in my toyota and it has no factory stereo wiring harness. Does anyone know where to find the ignition source and also the constant 12v source? Any help would be greatly appreciated. Thanks again.

DaveW

Replies:

Posted By: the12volt
Date Posted: June 18, 2002 at 11:55 AM

Hi Reddleman, if you can not locate any leads in the stereo location, you can always get a constant and accessory source at the ignition switch harness. Just be sure to fuse them appropriately.

the12volt

Posted By: the12volt
Date Posted: June 18, 2002 at 11:58 AM

BTW, here are the factory stereo colors for your vehicle: https://www.the12volt.com/installbay/detail.asp?info=alarm&year=1990&make=Toyota&model=Pickup&ID=19025&type=Stereo

And here are the colors for the leads you can use in the ignition switch harness: https://www.the12volt.com/installbay/detail.asp?info=alarm&year=1990&make=Toyota&model=Pickup&ID=19025&type=Alarm

the12volt

Posted By: Velocity Motors
Date Posted: June 18, 2002 at 11:58 AM

https://www.the12volt.com/installbay/detail.asp?info=alarm&year=1990&make=Toyota&model=Pickup&ID=19025&type=Stereo

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Posted By: Reddleman
Date Posted: June 18, 2002 at 5:28 PM

What do you mean fuse them? My stereo has a 20amp fuse on it. Do I need inline fuses? If so, what amp or voltage?

Dave

Posted By: TiCo_RuLeZ
Date Posted: October 31, 2002 at 9:50 PM

Toyota always use the same color code for the stereo.

Brown - Ground

Grey - 12 Volt Constant

Blue / YELLOW - Accesories

Dark Green - Illumination

Rigth Front speakers - Light Green (+) Blue (-)

Left Front speakers - Pink (+) Purple (-)

Right Rear speaker - Red (+) White (-)

Left Rear speaker - Black (+) Yellow (-)

Note that the rear speakers always comes in a separate group.

Posted By: SOUND PRESSURE
Date Posted: October 31, 2002 at 11:15 PM

You always would want to fuse your electronics. It's better to be safe than sorry. posted_image

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Sound Pressure

You know you have the right amount of pressure when your eyes start to water! Now you've got Juice!