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Ok so I have a system installed and I need to know where to connect the ground cable to the trunk? Can I see examples of where you guys put it...

I have a 04 Sedan.

thanks,

 
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mine is behind the back seat under the seat backing on the metal frame just make sure to sand it down to bare metal and make dure were ever you drill there is nothing that can be damaged.

 
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Seatbelt bolt is a good one too just make sure your on metal

 
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Wherever you want... like the two above say the only important thing is that its metal to metal contact. No paint allowed!!!

 
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i grounded mine on the ridge between the seats and the trunk. you can see it in the pic below. you can also see how i used hinges (due to the odd angle needed) to secure my sub box so it wasn't sliding around.

 
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Mine's in a most peculiar place. Up.

This picture doesn't quite include the actual bolt but you can see where it goes.
It's bolted to the underside of the rear deck, essentially.
Edit: Reason being, the ground is coming from my capacitor and it was a shorter distance to go up than down. Maybe I'll move it down to the floor at some point.



The amp under my driver seat is grounded to the seat belt bolt. (In case you're curious)

 
Rep Power: 256

if your going to drill like i said before be careful a friend of mine helped me ground a system in my old car to the trunk floor and drilled rite into my gas tank it wasn't pretty.also mine is grounded were electric130 put his.if your box is sliding around just use industrial strength velcro.

 
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thanks guys, i'll take a look tomorrow at my trunk, electric130, did you drill those holes or did you find a right size nut and just screwed it in. I dont really want to drill...

 
Rep Power: 291

i used a hole back there if i remember right. you'll need to sand down the paint to bare metal so you get good contact with the chassis.

 
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i used a hole thats in the top of the trunk. its just to the side of where your trunk light is, i sanded it down to the metal then put a nut and bolt through it. ill take a pic later on. it was extremely easy access and kind of out of the way.

 
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so i looked and it looks like there are already holes on the ridges... i sanded down a hole i wanted to use, now all i need is a bolt that fits...

 
Rep Power: 291

measure a hole as best you can, then go to Lowe's. find a sheet metal screw that the shaft is slightly smaller than the hole (but as close to the size as possible), but the threads are larger than the hole. that way, when you go to screw it in, it will basically bite into the metal with the threads. you'll want to apply as much pressure as possible when starting to screw it in so that you don't round off the threads, or enlarge the hole to where the screw just keeps spinning when it should be tight.