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Radio Draining Battery

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Old May 15, 2013 | 01:12 PM
  #1  
Javier87z28's Avatar
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Car: 1987 Camaro Z28, 1989 TTA #922
Engine: lb9, 3.8L turbo
Transmission: 700r4, 2004R
Radio Draining Battery

Hey guys i have an issue, the po had hacked up the wiring for the stock radio and put in a aftermarket system with an amp running straight to the battery i removed the amp and had the stock radio wired back in but noticed that the speakers would stay on even when the car was off then eventually started draining the battery overnight, ran a draw test and the radio is drawing to high a current even when off what should i look for?
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Old May 15, 2013 | 01:23 PM
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Car: 1987 iroc
Engine: 383 TPIS intake, Dyno Don headers
Transmission: 700R4 w/Pro-built Auto/transgo 2-3
Axle/Gears: 3.27/3.70 borg warner 9 bolt
Re: Radio Draining Battery

Well the speakers must be wired to a "always hot" wire somewhere, You need to look up the wiring diagram for the stock radio and see if it's all wired correctly.
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Old May 15, 2013 | 01:31 PM
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Car: 1987 Camaro Z28, 1989 TTA #922
Engine: lb9, 3.8L turbo
Transmission: 700r4, 2004R
Re: Radio Draining Battery

But I disconnected the speakers and the draw was still there it wasnt until the disconnected the radio that the draw left
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Old May 15, 2013 | 01:37 PM
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Car: 1987 Camaro Z28, 1989 TTA #922
Engine: lb9, 3.8L turbo
Transmission: 700r4, 2004R
Re: Radio Draining Battery

But the radio doesnt turn on when the key is off, it will light the screen for a couple seconds then fade out
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Old May 15, 2013 | 01:37 PM
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From: WI.
Car: 1987 iroc
Engine: 383 TPIS intake, Dyno Don headers
Transmission: 700R4 w/Pro-built Auto/transgo 2-3
Axle/Gears: 3.27/3.70 borg warner 9 bolt
Re: Radio Draining Battery

Like i said, you need to look at the stock wiring diagram for the radio. I have the wiring diagram at home, I can try and scan it and make a copy later this afternoon, unless some one else can.
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Old May 15, 2013 | 01:40 PM
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Car: 1987 Camaro Z28, 1989 TTA #922
Engine: lb9, 3.8L turbo
Transmission: 700r4, 2004R
Re: Radio Draining Battery

yeah if you can thatd be great
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Old May 15, 2013 | 01:40 PM
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Re: Radio Draining Battery

If the radio isnt turning on without the key turned to the accessory position sounds like the radio is bad and the power supply or a cap is drawing to many amps when the car is off.
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Old May 15, 2013 | 01:46 PM
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From: WI.
Car: 1987 iroc
Engine: 383 TPIS intake, Dyno Don headers
Transmission: 700R4 w/Pro-built Auto/transgo 2-3
Axle/Gears: 3.27/3.70 borg warner 9 bolt
Re: Radio Draining Battery

Originally Posted by Tuned Performance
If the radio isnt turning on without the key turned to the accessory position sounds like the radio is bad and the power supply or a cap is drawing to many amps when the car is off.
Gosh darn it, i knew if you were on here you would come through again. Thanks!
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Old May 15, 2013 | 01:59 PM
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Car: 1987 Camaro Z28, 1989 TTA #922
Engine: lb9, 3.8L turbo
Transmission: 700r4, 2004R
Re: Radio Draining Battery

So the radio should turn on without the key in the on position
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Old May 15, 2013 | 02:03 PM
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From: WI.
Car: 1987 iroc
Engine: 383 TPIS intake, Dyno Don headers
Transmission: 700R4 w/Pro-built Auto/transgo 2-3
Axle/Gears: 3.27/3.70 borg warner 9 bolt
Re: Radio Draining Battery

Originally Posted by Javier87z28
So the radio should turn on without the key in the on position
No, it should not.
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Old May 15, 2013 | 02:03 PM
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Axle/Gears: J65 pbr on stock posi 10bolt
Re: Radio Draining Battery

LOL, no the radio has a wire hooked to the ignition switch circuit so the radio will only have power in the start or accessory position. all radios wire up the same this schematic is from 92 so im not sure if there is any wire color change but as you can see in this picture the wire is brown.
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Old May 15, 2013 | 02:23 PM
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From: San Antonio, Texas
Car: 1987 Camaro Z28, 1989 TTA #922
Engine: lb9, 3.8L turbo
Transmission: 700r4, 2004R
Re: Radio Draining Battery

Lol okay thanks ill take a look maybe its wired elsewhere
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Old May 15, 2013 | 04:37 PM
  #13  
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Re: Radio Draining Battery

Originally Posted by Tuned Performance
LOL, no the radio has a wire hooked to the ignition switch circuit so the radio will only have power in the start or accessory position. all radios wire up the same this schematic is from 92 so im not sure if there is any wire color change but as you can see in this picture the wire is brown.
You mean run or accessory.

The accessory wire is yellow, not brown.
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Old May 15, 2013 | 04:41 PM
  #14  
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From: San Antonio, Texas
Car: 1987 Camaro Z28, 1989 TTA #922
Engine: lb9, 3.8L turbo
Transmission: 700r4, 2004R
Re: Radio Draining Battery

Does the yellow accesory wire apply to all third gens?
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Old May 15, 2013 | 04:47 PM
  #15  
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Car: 1967 Camaro, 91 z28
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Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Radio Draining Battery

Originally Posted by Six_Shooter
You mean run or accessory.

The accessory wire is yellow, not brown.
your right
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