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Old 11-22-2010, 06:49 AM
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08 Grand Cherokee grounding help

Hello guys..
I am planning to install a MTX REQ-5 in my 08 Grand Cherokee to save the factory head unit and installing a 4 channel to push the speakers and a 2channel to push 10's. I have limited jeep audio knowledge, so need your help to make the best setup. I just need some your ideas and suggestions for a good grounding spot that will make the install of the ground easier and with noise free.


All your inputs are warmly welcome.
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Old 11-22-2010, 11:51 AM
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Re: 08 Grand Cherokee grounding help

open front door. on side of dash is a panel. pop it open. the part that you are looking at opens first then that piece pops out. in there look forward at the dash are 2- 10MM bolts. those are grounds.

wkjeeps.com. look at the kicker install. they use that ground.
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Old 11-22-2010, 01:50 PM
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Re: 08 Grand Cherokee grounding help

if you want to ground them in the trunk, if you look at your side trim pannels in the trunk. There is that big ass hook deal? (i think its silver) i used the bolt on that, its huge and goes to the body. I have a rediculous 8 guage wire on that bad boy.
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Old 11-22-2010, 02:02 PM
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Re: 08 Grand Cherokee grounding help

I have my amps in the storage area under the floor in the back. I used one of the seat bolts or seatbelt bolts (don't recall which) for ground. I have a 4 ga. connected to it and no issues.
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Old 11-22-2010, 06:39 PM
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Re: 08 Grand Cherokee grounding help

drilled a hole into the floor underneath the cargo storage, sanded and screwed...4 ga. with ring-terminal with no issues...let me know if you need a pic.
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Old 11-23-2010, 03:58 PM
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Re: 08 Grand Cherokee grounding help

Basically any bolt into the body will served as a good ground. Just ground both amps to the same point, and make sure you sand the area to bare metal for a good contact. It all depends on your amp location and nearby bolts. Keep the ground wires under 3 feet which im sure you know. Me, I did a false cargo floor and used a large metal tab that the stock floor clipped under as my ground point, that clip already had a big hole drilled thru it and is welded directly to the metal panning. Good luck.
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