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Ground voltage 700

uid 14228's pic
posted by  ladeadhead on  Mon Apr 28 12:28 CST 2003
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last visit: Tue Nov 6 17:34 CST 2007
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I am installing a subwoofer in my '91 Volvo 740 sedan. I need to know if it has a 12 volt ground because the amp requires that. How do I know?








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Ground voltage 700

posted by  Bill Bretherton on  Tue Apr 29 02:45 CST 2003
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last visit: Wed Oct 22 12:52 CST 2014
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The car was manufactured with a negative ground. Look at your battery leads to confirm this.
--
BillB








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Ground voltage 700

posted by  dylant on  Mon Apr 28 13:21 CST 2003
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last visit: Tue Oct 16 15:08 CST 2001
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I'm going to resist the temptation to ask how you got your nickname.

Just about every car you see on the road is 12 volt negative ground. Older VWs may be 6 volt, and I think some old Jags might be 12 volt positive ground, but don't worry your head about that. Any car stereo amp you find for sale in a store is fine.

That said, MAKE SURE you fuse the power supply at the battery, not just at the amp. I've seen a few car fires and don't want to see any more.

If you are really struggling to install this amp email me directly.

-Dylan








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Ground voltage 700

posted by  walrus3 on  Mon Apr 28 12:35 CST 2003
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last visit: Mon Dec 2 14:20 CST 2013
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See if one of your battery cables goes to ground somewhere.
Should be the negative (-) cable.
--
George Downs, The "original" Walrus3, Bartlesville, Oklahoma








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Ground voltage 700

posted by  nkfro on  Mon Apr 28 15:33 CST 2003
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Think back 15 years and you'll remember that Chrysler used a positive ground system. Not such a silly question if one doesn't know!
--
There are no stupid questions only those that are not asked.








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Ground voltage 700

posted by  Aye Roll on  Mon Apr 28 12:48 CST 2003
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last visit: Tue Oct 14 21:08 CST 2014
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You said that with a straight face!
--
Rob Bareiss, New London CT ::: '86 244DL- 215K, 87 244DL- 230K, 88 744GLE- 198K, 91 244 180K








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Ground voltage 140-160 1969

posted by  walrus3 on  Mon Apr 28 15:44 CST 2003
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last visit: Mon Dec 2 14:20 CST 2013
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Give a man a fish....
Teach him to fish....
Inspire him to teach himself how to fish....
--
George Downs, The "original" Walrus3, Bartlesville, Oklahoma







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