Need Help with behind dash wiring
Thread Starter
Burning Brakes
Joined: Mar 2005
Posts: 1,164
Likes: 5
From: Middle Earth
Need Help with behind dash wiring
Ok, I was hooking up my new radio in my '68 and ran into a strange problem. I went -
Car Radio
Yellow - Yellow
Black - Black
Grey - Red
I hooked the battery back up, turned the ignition to ON and nothing. I checked the fuse and it was fine. On a whim, I put the red and yellow together and the lights behind the gauges lit up and the radio turned on - with the ignition turned off. I get that the ignition wire is not working to turn on the radio, but why did the gauge lights come on? Also, how to do fix the issue?
Thanks, guys
Car Radio
Yellow - Yellow
Black - Black
Grey - Red
I hooked the battery back up, turned the ignition to ON and nothing. I checked the fuse and it was fine. On a whim, I put the red and yellow together and the lights behind the gauges lit up and the radio turned on - with the ignition turned off. I get that the ignition wire is not working to turn on the radio, but why did the gauge lights come on? Also, how to do fix the issue?
Thanks, guys
Last edited by SDS Photography; Jun 4, 2016 at 02:28 PM.
Le Mans Master
Joined: May 2003
Posts: 8,877
Likes: 3,556
From: Fernandina Beach FL
2023 Restomod of the Year finalist
2020 C3 of the Year Winner - Modified
Just because wires are the same color...
The yellow wire from the radio needs to go to constant 12V source..cigarette orange wire will work.
The red wire from the radio need to go to the yellow wire - the yellow wire from the car is +12 ignition.
The grey wire is instrument lights- if the radio has an input for this connection- Otherwire- cap off/wire wrap and not use.
The black wire is a ground...
Richard
The yellow wire from the radio needs to go to constant 12V source..cigarette orange wire will work.
The red wire from the radio need to go to the yellow wire - the yellow wire from the car is +12 ignition.
The grey wire is instrument lights- if the radio has an input for this connection- Otherwire- cap off/wire wrap and not use.
The black wire is a ground...
Richard
Thread Starter
Burning Brakes
Joined: Mar 2005
Posts: 1,164
Likes: 5
From: Middle Earth
I was following this - http://www.digitalcorvettes.com/foru...d.php?t=130251
Last edited by SDS Photography; Jun 4, 2016 at 07:19 PM.
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,853
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Just because wires are the same color...
The yellow wire from the radio needs to go to constant 12V source..cigarette orange wire will work.
The red wire from the radio need to go to the yellow wire - the yellow wire from the car is +12 ignition.
The grey wire is instrument lights- if the radio has an input for this connection- Otherwire- cap off/wire wrap and not use.
The black wire is a ground...
Richard
The yellow wire from the radio needs to go to constant 12V source..cigarette orange wire will work.
The red wire from the radio need to go to the yellow wire - the yellow wire from the car is +12 ignition.
The grey wire is instrument lights- if the radio has an input for this connection- Otherwire- cap off/wire wrap and not use.
The black wire is a ground...
Richard
On a factory radio you have the following wires at the radio connection:
Gray... instrument lamps gets power when you turn on the headlamps.
Black ground
Yellow power wire to the radio...
(I tried that link, it's not working).
-Willcox
Last edited by Willcox Corvette; Jun 4, 2016 at 07:08 PM.
Instructor
Joined: May 2015
Posts: 118
Likes: 28
From: California
2016 C4 of Year Finalist
The original radio didn't have a constant, just yellow power, black ground, and the grey for lights. There's a terminal labeled BAT on the fuse box you can get 12v constant from.
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,853
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Willcox
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