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Discussion Starter · #1 ·
Guys, where are you grounding your amps in the boot area?? Wherever
I try, I get ground loop interference as I guess the route with less resistance
is via my RCAs back to the battery causing nasty alternator whine!
 

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Inside the cubby hole with the door on the left (this is if you don't have a cd changer) you will see a bolt hole coming from the wheel arch. I sanded the paint off the surrounding area and grounded mine there. Had no probs.
 

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Before commiting yourself as to where to place the earth use a
multimeter and ensure the resistence is 0 ohms. Also how can you
be sure it is comming from the earth and not the RCA's or Stereo?
Don't mean to sound like a wet blanket but the interferance could be a
number of things, I know what a pain it can be, as it happened to me
last month when setting up my installation. Securing the
earth to any point in the boot as long as it is solid and unpainted
should be fine, idealy the best way is to go from battery negative to
bolt to bolt 18 inches apart until the amp earth point but then again
nobody does this me included. Good luck mate and hope you get it
resolved quickly.
 

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When putting my installs in the boot, i run an earth lead into the car underneath the rear seats (passenger side), sand off the paint to reveal bare metal then bolt it there. Never had any problems and it saves having to sand somewhere in your boot (sometimes looks iffy when you come to sell).

Hope this helps
 

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W36 EJO wrote:



Inside the cubby hole with the door on the left (this is if you don't have a cd changer) you will see a bolt hole coming from the wheel arch. I sanded the paint off the surrounding area and grounded mine there. Had no probs.

Thats where i took mine from too.....
any chance of getting this pic up guys??? i cant seem to find the bolt :( and i cant get my light on my amp either :( me an my mates were doing it last night, managed to get the amp light on an everything was werking fine, so started tidying up all the wiring, havent earthed it yet...jus tested it agen to make sure its all werking before earthed it then the light wudnt come on
 

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When putting my installs in the boot, i run an earth lead into the car underneath the rear seats (passenger side), sand off the paint to reveal bare metal then bolt it there. Never had any problems and it saves having to sand somewhere in your boot (sometimes looks iffy when you come to sell).

Hope this helps
I've always done this in previous cars with no problems
 

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Just for reference if anyone else looks at this thread... On a bora you can sand and clean one of the holes in the metal parcel shelf on the far left or right side. Perfect size for a bolt and washer and its right at the back of the boot so the cable runs along near the back of the rear seats [:)]
 
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