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      01-14-2013, 02:40 PM   #9
ellipsis212
I bought my ski mask in Aspen
 
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Drives: MB 330i 6MT
Join Date: Jun 2009
Location: NYC > RVA

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2006 330i  [0.00]
Quote:
Originally Posted by ctuna View Post
Whatever you do measure the resistance to the top of the battery before you fire it up.
That sounds serious. Is that for noise reduction, ground safety, or both? Do you just use a multimeter and look for voltage drop?

While I've installed a few amps in previous vehicles I've never actually tested my ground point. I just used whatever other folks with the same vehicle recommended.

Also, I could've grounded to the battery directly but the ground cable would've been like 7' long. Is that an issue?
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