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Want A New Earth For Headunit

Krimz

By Krimz,
in Car Audio & Electrical

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Krimz Collaborator

Krimz

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Hey guys, at the moment im using the aerial cable as my earth for headunit, but now i want to use my aerial so where is the best nice and easy spot for new earth? I also want to run some of my guages to this earth also, Any ideas? Its for a R33 S2.

I have tried a couple spots around the bolts by the gearbox etc, no luck.

Cheers

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https://www.sau.com.au/forums/topic/188310-want-a-new-earth-for-headunit/
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RANDY Veteran

RANDY

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Times three!

I sanded the metal ring part (after removal. Easy), stuck a bolt and washer over one hole, then sprayed the whole thing black gloss. Remove the bolt and washer, and you have a perfectly clean grounding point. Attach ground wire after re-installing it all and then spray or rub with some kind of lubricant (WD40, etc), which will stop the bare metal from rusting.

Krimz Collaborator

Krimz

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I tried the spot u three guys use, tested it with light n was ok the connected it up properly n for sum reason didnt work? I still duno y it didnt work.

Just to make sure we are talking about the same spot, one of the four bolts underneath the gearstick cover, beside the lower rubber part off stick?

nissanskyrice Collaborator

nissanskyrice

Posted
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make sure youve sanded back any paint that is at that point. bare metal is a good ground, paint is not :) by all means paint over it once grounded to stop rust. also make sure the ground wire from the head unit isnt dodgy. ive had one with a break in the ground wire before. would work randomly. replaced the ground wire at the plug - which wasnt fun :(

Krimz Collaborator

Krimz

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wire is all fine, dont think its an fuse problem as when i change back to my old earth it all good. Im really confused why when i test the point steve told me it shows its good, then I wire it up, none of the bolts can be earthed when i test with light. Its fine till i connected it lol. Then i take it off and that point is ok again :thumbsup:

abu Grand Master

abu

Posted
Posted
I tried the spot u three guys use, tested it with light n was ok the connected it up properly n for sum reason didnt work? I still duno y it didnt work.

Just to make sure we are talking about the same spot, one of the four bolts underneath the gearstick cover, beside the lower rubber part off stick?

That quiet funny actually, because I wired up a head unit in my friends R32, and used the same grounding point as mine, which is the one were all referring too, and it didn't work either!

Very weird..

I just used one of the other screw holes that holds the rubber boot thing in place.

The mounting bracktes in the dash, to the left and right side of the head unit also work as an earth.

Krimz Collaborator

Krimz

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So i can use the earth point at the back of head unit then if i can earth to mounting brackets? I havent had a good look at it but i thought the brackets are all attached to plastic and not the body at all?

RANDY Veteran

RANDY

Posted
Posted

Yer... I probably wouldn't trust the brackets to be well grounded actually.

Failing the rubber boot surround bit, perhaps go for something around your handbrake? Removing the entire centre console at the point you are now is just a few extra screws.

Krimz Collaborator

Krimz

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Yea i had all that off aswell fitting switches in my console box. Il have a play around the handbreak in the weekend, I did try what Hellfire said at start but i had trouble geting dam footrest off, is there more than just 2 screws or what?

Also what is that thing underneath the console box? behind the handbreak a lil bit. Is that something to do with the airbags?

Krimz Collaborator

Krimz

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Oh i see, yea i took the front 2 off and couldnt get the footrest off so i tried hookin earthcable up to one of them bolts lol no gud, how does the foot rest come off? i used a bit of force but also didnt wana break it lol im gud at that haha.

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