Wiring Headunit To Battery Constant

DurtyBreed

DurtyBreed

Not-quite-so-new-guy
Oct 9, 2018
14
10
3
San Jo, Califas
#1
I drive a 78 Buick Regal it has a factory original delco radio in it... I have purchased a new double din pioneer headunit and purchased a gbody wiring harness to hook up to the factory unit... I had trouble getting the wood face off the center console so I got on the ground and unplugged the 3 main wiring leads from the backside thru the gaps but I can not find the 4th battery constant wires. I’m beginning to think they don’t exist on this old model since it probably ne’er stored the time before but I don’t know what to hook my new unit up too now cuz when I turn the car on the new headunit isnt starting when all wires are plugged in except the constant yellow connection... I read online that some people wire the yellow to the 12v battery ignition wire but idk if that’s such a good idea or if I’m suppose run a new wire to the battery for a constant
 
Texas82GP

Texas82GP

Comic Book Super Hero
Supporting Member
Apr 3, 2015
4,518
7,116
113
Spring, Texas
#2
I drive a 78 Buick Regal it has a factory original delco radio in it... I have purchased a new double din pioneer headunit and purchased a gbody wiring harness to hook up to the factory unit... I had trouble getting the wood face off the center console so I got on the ground and unplugged the 3 main wiring leads from the backside thru the gaps but I can not find the 4th battery constant wires. I’m beginning to think they don’t exist on this old model since it probably ne’er stored the time before but I don’t know what to hook my new unit up too now cuz when I turn the car on the new headunit isnt starting when all wires are plugged in except the constant yellow connection... I read online that some people wire the yellow to the 12v battery ignition wire but idk if that’s such a good idea or if I’m suppose run a new wire to the battery for a constant
https://gbodyforum.com/threads/cant-find-power-wire-for-stereo-anyone-else.25610/
 
DurtyBreed

DurtyBreed

Not-quite-so-new-guy
Oct 9, 2018
14
10
3
San Jo, Califas
#3
I believe this is delco radio I have, the wiring looks a little different on the back but the antenna and 3 wiring blocks are in same spots can’t find a constant wire thou
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Texas82GP

Texas82GP

Comic Book Super Hero
Supporting Member
Apr 3, 2015
4,518
7,116
113
Spring, Texas
#5
You're welcome. A Google search will usually turn up the answer. There are few topics that haven't already been hashed out on here.
 

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