Re: alternator
I would check the voltage output right at the alternator, and also have the battery load tested. It sounds like the alternator is starting to go.
As for the bouncing, does it happen to coincide with big bass hits from your amp/sub? If you have a big amp and sub it can put a big draw on the system when it's trying to punch out the bass. It is possible that the alternator is not putting out the power it used to, and now you are seeing this effect.
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2005 H2 SUV - Stealth Gray with Ebony interior - Third row - Exterior tire carrier -
Mirror caps - black bedliner
Roof rack rails - black bedliner
Wheels - Black bedliner on stock wheels
Gas cap lid - still chrome but will soon be black bedliner
Tail light guards - still chrome but will be black bedliner
Grill - Still chrome but will be black bedliner
Hmmmm, is there a pattern developing here?
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