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dhryan44 06-04-2011 11:52 AM

finding ground
 
hey everyone. I'm installing a subwoofer into my car 04 jeep and im having problems finding a ground withing 3 feet of my trunk..does anyone know where a ground is?..i tried the seatbelt cuz i see the bare metal but it didnt work..so plxz help me

JeeponDUBS 06-04-2011 12:16 PM

Re: finding ground
 
if i'm not mistaken (it's been awhile since i installed a system in that body style grand cherokee) but i think the gap behind the rear seats that goes down to the metal floor, i just drilled a screw into it and grounded it there. You wanna sand off a small area if painted so the metal is showing.

Frango100 06-04-2011 12:36 PM

Re: finding ground
 
The official grounds are like this:

GROUND NUMBER LOCATION FIG
G100 (4.0L and Diesel) Near Starter N/S
G100 (4.7L) Near Intake Plenum N/S
G101 Near Battery 3
G102 Right Side of Engine 19, 20
G103 Right Side of Engine 9, 13, 15, 16, 19, 20
G104 (4.0L) Right Rear of Engine 15, 16
G104 (4.7L) Left Side of Engine 18
G105 Right Side of Engine 13
G106 Left Side of Engine Compartment 4, 5
G107 Left Side of Engine Compartment 4, 5
G108 Near Power Distribution Center 6, 7
G200 Near Airbag Control Module 24, 27, 28, 29
G201 Near Airbag Control Module 24, 27, 28, 29
G300 Near Right Front Seat 42, 44

G301 Near Left Front Seat 41, 43

So not one really close to the trunk.
Just measure any existing bolt on the trunk floor to a known ground point to be sure its ok.

Sir Sam 06-04-2011 04:08 PM

Re: finding ground
 
Uh, the whole vehicle body is a ground, just drill a self tapping screw into the metal somewhere unobtrusive and be done with it.......

dhryan44 06-04-2011 05:08 PM

Re: finding ground
 
i dont have a drill..im f**ked..i dont know ill figure it out

Sir Sam 06-04-2011 05:53 PM

Re: finding ground
 
Quote:

Originally Posted by dhryan44 (Post 425118)
i dont have a drill..im f**ked..i dont know ill figure it out

Then use a socket on a self tapping screw and press hard, self tapping screws have a cutter on the end so that you need not drill a pilot hole.

josef15111 06-13-2011 04:10 PM

Re: finding ground
 
i use the seat bolts the hold the back part of the back seat up. works very well. just toook a bolt out and bolted my wire down.


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