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radio, no power, fuses ok


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lightbulbcomics 
Member - Posts: 7
Member spacespace
Joined: October 02, 2007
Location: Ohio, United States
Posted: October 02, 2007 at 7:06 PM / IP Logged  

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!

wrenches 
Member - Posts: 44
Member spacespace
Joined: October 22, 2006
Location: Ontario, Canada
Posted: October 03, 2007 at 9:04 AM / IP Logged  
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.
lightbulbcomics 
Member - Posts: 7
Member spacespace
Joined: October 02, 2007
Location: Ohio, United States
Posted: October 03, 2007 at 9:50 AM / IP Logged  

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).

lightbulbcomics 
Member - Posts: 7
Member spacespace
Joined: October 02, 2007
Location: Ohio, United States
Posted: October 09, 2007 at 12:17 PM / IP Logged  

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?

burns25 
Member - Posts: 49
Member spacespace
Joined: March 09, 2005
Location: United States
Posted: October 09, 2007 at 7:00 PM / IP Logged  
did you check under the hood for fuses also?  i'm pretty sure there is a fuse under the hood for the radio.
lightbulbcomics 
Member - Posts: 7
Member spacespace
Joined: October 02, 2007
Location: Ohio, United States
Posted: October 09, 2007 at 7:11 PM / IP Logged  
In the power distribution box? I looked, no radio fuse.
techman93 
Silver - Posts: 591
Silver spacespace
Joined: October 28, 2006
Location: Pennsylvania, United States
Posted: October 09, 2007 at 7:43 PM / IP Logged  
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.
lightbulbcomics 
Member - Posts: 7
Member spacespace
Joined: October 02, 2007
Location: Ohio, United States
Posted: October 09, 2007 at 8:00 PM / IP Logged  

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

Thanks for the advice!

techman93 
Silver - Posts: 591
Silver spacespace
Joined: October 28, 2006
Location: Pennsylvania, United States
Posted: October 09, 2007 at 8:14 PM / IP Logged  
No problem
lightbulbcomics 
Member - Posts: 7
Member spacespace
Joined: October 02, 2007
Location: Ohio, United States
Posted: October 09, 2007 at 8:23 PM / IP Logged  

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

Thanks!

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