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      03-03-2019, 07:16 PM   #1
AlbertoSONIC
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Help in finding ground behind iDrive?

Some months ago I installed an aftermarket backup camera, which had a cable with video, vcc and ground all together. That cable had to be plugged directly into an interface, which provided ground and 12 v on his own. But now I'm switching to another interface with carplay and this new interface just has only video plug and 12 v, no ground. So I have to ground it on my own. Given that the all the wires run together inside the same insulation from the trunk to the front, my only choice is to find ground behind the idrive.. Is there a bolt or something like that? Or a wire to ground I can use with a clip connector? Thank you
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      03-13-2019, 12:11 PM   #2
AlbertoSONIC
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Nothing? If I use the ground wire of the display, would it work?
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      03-13-2019, 12:40 PM   #3
Billfitz
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Most metal parts on the car are grounded. All of the sheet metal for sure.
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      03-13-2019, 12:42 PM   #4
AlbertoSONIC
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Quote:
Originally Posted by Billfitz View Post
Most metal parts on the car are grounded. All of the sheet metal for sure.
Yeah but I don't see any grounded bolt behind the idrive so I tried to find a ground wire...
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      03-13-2019, 12:47 PM   #5
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You can take ground from where you want.
Either from the body or tap a cable.
Ground is always a brown cable.
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      03-13-2019, 12:49 PM   #6
AlbertoSONIC
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Quote:
Originally Posted by atzebmw View Post
You can take ground from where you want.
Either from the body or tap a cable.
Ground is always a brown cable.
So I can tap the screen ground cable? I mean, it's the same ground of everything else of the car? Or maybe it runs on a separate circuit?
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      03-13-2019, 01:52 PM   #7
atzebmw
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Quote:
Originally Posted by AlbertoSONIC View Post
So I can tap the screen ground cable? I mean, it's the same ground of everything else of the car? Or maybe it runs on a separate circuit?
Yes, it‘s the same ground of everything else of the car.
Tap it whereever you want.
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