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Radio Shuts Off When Brake Is Pressed

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Old 10-04-2006 | 07:18 PM
  #1  
quisterio's Avatar
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From: Glasgow, KY
Car: 87' GTA
Engine: 350 L98 TPI
Transmission: 700-R4
Axle/Gears: 3.27 9-Bolt
Radio Shuts Off When Brake Is Pressed

OK, this just started happening today, whenever I press down on my brake pedal, my radio just shuts off then comes back on.

Is it a short somewhere?
Is there a wire getting pinched?


Whats causing my radio to shutoff and come back on?
Old 10-04-2006 | 11:02 PM
  #2  
Gummie's Avatar
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Joined: Sep 2003
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From: Readington, NJ
Car: 88 GTA
Engine: 350 TPI
Transmission: T-56
Axle/Gears: 9 bolt w/ 3.73
Originally Posted by quisterio
OK, this just started happening today, whenever I press down on my brake pedal, my radio just shuts off then comes back on.

Is it a short somewhere?
Is there a wire getting pinched?


Whats causing my radio to shutoff and come back on?
Three possibilities. The first is a short. The second is a voltage drop when you hit the brake. The third is a bad ground, but this is pretty unlikely IMO.

The quick and easy way to find out is to watch both the ignition wire and the 12v wire for the deck with a DMM when you hit the brake.
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