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Discussion Starter #1
turn stereo on higher volume at night makes my lights dance even with 2 batteries... lol...

what is the stock amp size?

which battery is the primary battery, the driver or passenger side?

stereo is currently connected to the drivers side...
 

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You could just by 2 Optima "Yellow-Tops" or "Blue-Tops"!

That would help a little.

I would go with 2 Optima "Yellow-Tops", AND a bigger Alternator.

Then you'd be in bidd'ness!
 

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Discussion Starter #5
anyone know how big of an alternator you can get for this truck and for how much?
 

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I haven't had any issues with my truck so far. I have a fairly big system when turned up draws about 200amps and my volt meter drops alittle but not to much
 

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Discussion Starter #8
ur lights dont dance with bass high?

u have a capacitor?
would that make a diff?
 

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around a 5 farad capacitor would probably help
 

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Discussion Starter #10

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you need a capacitor if you dont have one. and it has to be mounted as close to the amp as possible. the capacitor is a quick dump system so it draws out of there and doesnt effect the battery. good luck
 

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I think your alternator is just slowly going bad. 2 batteries is sufficient to not make your lights flutter. I had this problem with my F-150 even w/ an Optima Yellow. I went through 2 alternators until I got a Capacitor. Then I transfered it all to the Cummins. But a 2 F capacitor should be good enough and replacing your alternator.
 
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