snair2

iTrader: (3)

This may not be the most efficient way of getting rid of engine whine, but isn't it possible to wire the ground from the amplifier to the negative post of a car battery to remove noise? For example I have an old car battery and was wondering what would happen if I wire the ground to this battery while using the positive from the working battery in the engine bay, keep in mind the battery I want to use for ground has no charge in it, it's been dead for 3 years now. Wouldn't this method remove and if not all ground loops?

Batxel

iTrader: (1)

Technically a good ground is connected to negative battery post anyway. One way to find out whether or not you have a good ground would be to use a ohmmeter and measure the resistance between negative battery post and your future ground point [if its a long distance use some left over wire and subtract the wire's resistance]. It should be less than an ohm. The rear strut bolts are perfectly fine for a 4th gen.

jigga123

I dont think it will work well. Why dont you try to fix the ground probblem? MAke sure the terminal is crimped tightly, wire shorter than 3 ft, sand away to the metal were your gonna fround it and make sure its a part of the chassis and not just some bolt. Use a self tapping screw. Try that and if that doesnt work then look for alternatives.

AscendantMax

iTrader: (7)

your system won't turn on...the dead battery won't complete a circuit from the rest of your car's electrical system.

sparkyssb

correct

sparkyssb

get an isolator on the alternator and fix your ground. that should be about it.