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radio, no power, fuses ok

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=97627
Printed Date: April 25, 2024 at 4:57 PM


Topic: radio, no power, fuses ok

Posted By: lightbulbcomics
Subject: radio, no power, fuses ok
Date Posted: October 02, 2007 at 7:06 PM

Hi. Nothing fancy here, just want a regular radio to listen too. I tried to hook up a radio in my car using the harness, just plugged into the factory radio. Didn't work, no power, fuses OK. So now what? I don't have a voltmeter to test the wiring. I know the radio works. Is there a poor man's way to test the wiring?

What would you do?

I appreciate any help!




Replies:

Posted By: wrenches
Date Posted: October 03, 2007 at 9:04 AM
I would tell us the year, make and model of the car, and what kind of radio you are putting in it.  It could be something as simple as actually mounting the radio in the car.  Some of the older Nissans didn't get ground until the radio was screwed in the dash for example.




Posted By: lightbulbcomics
Date Posted: October 03, 2007 at 9:50 AM

Sorry about that!

'91 Mercury Cougar. The factory radio that was in it would only get static. I tried to plug in my factory radio from a '93 Ford Taurus, no power (this radio worked before).





Posted By: lightbulbcomics
Date Posted: October 09, 2007 at 12:17 PM

Hopefully someone can give a novice some advice. According to the below chart, this should be the configuration of my wiring:   

https://www.the12volt.com/installbay/stereodetail/1469.html

Now, I tested the wires using a test light, and the results I got are my constant & switched 12v get nothing, there is a large red wire that seems to have the power in any key position. The illumination is OK, and antenna trigger blew out my test bulb!

So I tried wiring my yellow & red to the large red wire, and ground to ground= nothing.

Any help?





Posted By: burns25
Date Posted: October 09, 2007 at 7:00 PM
did you check under the hood for fuses also?  i'm pretty sure there is a fuse under the hood for the radio.




Posted By: lightbulbcomics
Date Posted: October 09, 2007 at 7:11 PM
In the power distribution box? I looked, no radio fuse.




Posted By: techman93
Date Posted: October 09, 2007 at 7:43 PM
Constant 12V+     GREEN/ YELLOW
Switched 12V+      Yellow/Black
Illumination      Blue/Red
Dimmer      n/a
Antenna Trigger      ORANGE / Blue
Antenna      Right Front
Front Speakers      5" x 7" Doors
Left Front (+)      ORANGE / Green
Left Front (-)      BLACK/ White
Right Front (+)      WHITE/ Green
Right Front (-)      BLACK/ White
Rear Speakers      5" x 7" Side Panels
Left Rear (+)      Pink/Green
Left Rear (-)      Pink/Blue
Right Rear (+)      Pink/Blue
Right Rear (-)      GREEN/ Orange
I have advice if this isn't of help ... run new wires.
Find a solid ground and ring terminal end of wire and attach by a ground already in vehicle or clean off paint from metal in driver kick and screw in with self tapping screw.
Run a wire direct to battery with a 20 amp fuse close to battery for a constant 12v source. Or at ignition wires in steering column.
Constant 12V+     BLACK/ Orange        Ignition Switch Harness
and add fuse here 15 - 20 amps in a fuse holder
Ignition      RED / Green      Ignition Switch Harness
you can fuse this one if you feel like it to be safe with same as for constant 12v+.
Hope you get your radio working.




Posted By: lightbulbcomics
Date Posted: October 09, 2007 at 8:00 PM

I may try that, thought about it, but wasn't sure how to go about it.

Thanks for the advice!





Posted By: techman93
Date Posted: October 09, 2007 at 8:14 PM
No problem




Posted By: lightbulbcomics
Date Posted: October 09, 2007 at 8:23 PM

Actually 1 more question- where exactly is a good place to put the ground wire? Into any metal of the car?

Thanks!





Posted By: perly
Date Posted: October 13, 2007 at 8:29 PM
any bare metal is a good ground. just make sure that you scratch/sand away any paint before you ground it




Posted By: techman93
Date Posted: October 14, 2007 at 7:56 AM
If you would have read my post originally you would have not had to have asked that question.
techman93 wrote:

Constant 12V+     GREEN/ YELLOW
Switched 12V+      Yellow/Black
Illumination      Blue/Red
Dimmer      n/a
Antenna Trigger      ORANGE / Blue
Antenna      Right Front
Front Speakers      5" x 7" Doors
Left Front (+)      ORANGE / Green
Left Front (-)      BLACK/ White
Right Front (+)      WHITE/ Green
Right Front (-)      BLACK/ White
Rear Speakers      5" x 7" Side Panels
Left Rear (+)      Pink/Green
Left Rear (-)      Pink/Blue
Right Rear (+)      Pink/Blue
Right Rear (-)      GREEN/ Orange
I have advice if this isn't of help ... run new wires.
Find a solid ground and ring terminal end of wire and attach by a ground already in vehicle or clean off paint from metal in driver kick and screw in with self tapping screw.
Run a wire direct to battery with a 20 amp fuse close to battery for a constant 12v source. Or at ignition wires in steering column.
Constant 12V+     BLACK/ Orange        Ignition Switch Harness
and add fuse here 15 - 20 amps in a fuse holder
Ignition      RED / Green       Ignition Switch Harness
you can fuse this one if you feel like it to be safe with same as for constant 12v+.
Hope you get your radio working.




Posted By: lightbulbcomics
Date Posted: October 14, 2007 at 8:08 AM

I did read your post, but didn't know what you meant by driver's kick.

Anyway, I got it working. Thanks to everyone.





Posted By: extreme1
Date Posted: October 14, 2007 at 12:21 PM
lightbulbcomics wrote:

Hopefully someone can give a novice some advice. According to the below chart, this should be the configuration of my wiring:    

https://www.the12volt.com/installbay/stereodetail/1469.html

Now, I tested the wires using a test light, and the results I got are my constant & switched 12v get nothing, there is a large red wire that seems to have the power in any key position. The illumination is OK, and antenna trigger blew out my test bulb!

So I tried wiring my yellow & red to the large red wire, and ground to ground= nothing.

Any help?




that big red wire in the radio harness is the ground.

-------------
Shaughn Murley
Install Manager, Dealer Services
Visions Electronics
Red Deer, Alberta





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