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So I am driving down the road the other day and my car dies, but as quick as it dies it comes back on, I knew it died because my cd player and my radar detector both went off.
Next I am sitting in the driveway, with my car running, playing my sub and the dash lights would go dim and the the sub would quit hittin some of the time.
Tonight I am sitting in the driveway and my headlights are on and every time I tap my brakes the lights would go dim.

Please help me find out what the problem is.

 
Rep Power: 453

sounds like a loose ground connection somehwhere.

 
Rep Power: 0

^Ill check that

come on guys i need some more help.

 
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Might also be an alternator or battery on their way out.

 
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First off, are you using the stock battery for all of your accessories? Second, do you have caps for your sub? Third, if you haven't done so, pick up an Optima Yellow battery and some caps. The stock battery is JUST ENOUGH to start the car.

 
Rep Power: 289

yeah that sounds to me like alt or batt saying good night.

do what happy says