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Just got system done. Lights Dim Bad


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Haha no not that broke. But another $200 battery may send my wife over a cliff.

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Just tell her its your xmas gift to yourself eheheh :D

Jeep Cherokee 4dr -4.75 in front, new rusty's 4.5 in rear leafs -micky thompson 35x14.50x15 -locker rear -Rusty's offroad Engine/transmission/transfer case/crossmember/gas tank skid plates -Warn front bumper with 8000lb winch -Custom rear bumper -Warrior product tube doors (summertime) -Optima redtop (starter) -26XK miles and still runs like a bat out of hell

Kenwood H/U

1/0 wire,

136 amp alt 200 ah batteries 12.7 daily

2 Apsm 1500 @ 2 ohm strapped on zv3 d1 with ns softparts

Mb quart 125.4 wired to 4 aura 6's

3.6 cube box tuned to 36 plays down to 23hz

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Haha, I already used that for the other stuff I just had put in.

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I followed the ground down to a post under the drivers side rear seat. Sanded and tight. I'll post a pic later tonight. Seems solid but the bolt may not really go anywhere. I can't tell yet.

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Sorry thought this txt I got was a job I was waiting to go on...

The one amp needs a 120a fuse

The other amp needs a 60a fuse

If you are going to do a chassis ground the thickest spot I know if is under the molding in the door jam (where is curves out big time). Just make sure they didn't just ground it to a seat bolt w/o taking of the paint.

I also just noticed you said money is crazy tight, but you still need to add grounds up front from the chassis (or frame) to the battery and from the battery to one of the bolts on the alt (one of the 2 that hold the alt in). You should also add a run from the alt (power) to the battery. You can use 4g if you can't afford 1/0 as 1/0 that short is complete overkill.

If you don't know where to run your frame or chassis ground this is what I would do. Get enough 4g to run from the alt to the frame and then from the frame to the battery. The location I would use is on the drivers side (called left) left of the cross member under the truck. Look for a hole in that brace just above where the cross member bolts into. Get a 1/4" stainless (important, STAINLESS) bolt, washer, lock washer, and a nut. Sand down where the hole is, put the bolt in, put on the washer, put on your 2 4g runs, lock washer, and nut. Then hit it with some spray paint (rustolium or whatever you have handy).

Run one of those to your alt (as close to it as possible, depending on the ring terminal you have try to get it between the bracket the alt sits in and the alt itself) and run the other to the bettery. Then as said above just make a positive run (add do not remove the existing wire) from the battery to the alt.

This is where I ground 2 of my runs (where I suggest you do as well). Unfortunately our frames have next to no gaps for you to bolt into it so I go with where there is some serious welds. Anyways...

There are 3 videos as I didn't feel like editing them when I posted them, check my channel for the other 2.

The 150 is the ANL up front then split to two 60amp in the fuse block at the back.

Thanks for the info. I'll check out those vids as soon as I get home!

Off the top of your head, you know where I can possibly find a grommeted hole through the floor? I was thinking about checking the bottom of the trunk well and maybe under the rear seats. Sorry if you answered this already. I'm checking I'm from my phone at work.

Dont use 4 g, you have bad dimming, if you have 4 g wire arround you can maby do a doublerun of 4 G. Bad dimming means no jokes with the electrical system.

"in the abundance of water, the fool is thirsty" Bob Marley

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What does that mean? Stuff can go haywire fast?

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What does that mean? Stuff can go haywire fast?

No he is trying to say that you need 1/0 for a 2ft ground run and 150a'ish of draw to get rid of your dimming.

1/0 is always "better", but its capacity is well beyond what you need. If you plan on upgrading in the future and have the money do it in 1/0, if not 4g is fine as you have a max draw around 150a which is what most 4g can do at 8-12' and your stock wiring is already 4g afaik.

Have your battery tested and do the big 3 in either 4g or 1/0, just don't buy it local you will get ripped off (go to Knukoncepts or the like)

Edited by UnderLoK

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What does that mean? Stuff can go haywire fast?

No he is trying to say that you need 1/0 for a 2ft ground run and 150a'ish of draw to get rid of your dimming.

1/0 is always "better", but its capacity is well beyond what you need. If you plan on upgrading in the future and have the money do it in 1/0, if not 4g is fine as you have a max draw around 150a which is what most 4g can do at 8-12' and your stock wiring is already 4g afaik.

Have your battery tested and do the big 3 in either 4g or 1/0, just don't buy it local you will get ripped off (go to Knukoncepts or the like)

My only concern is the ground block is 4ga inlet. I considered doing a 4 ga and a couple 8ga even and just doing an "all holes filled" on that ground block. :lol:

Tomorrow morning I am going to crawl under there and see what I'm dealing with. In the meantime, besides some dimming lights is anything in extreme danger? Like keep it completely off danger or no slamming danger?

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Are you running the stock battery?

I have a system in my girls car only like 1000rms max on an 02 trailblazer and theres dimming, not huge, but there is which kinda shocked me. Im running knu 4 gauge all around so that shouldnt be the problem. I have not done the big 3 neither but i also have the stock battery. I want to upgrade the stock to 1 beefy one and im hoping that would fix everything.

However, even when i have the system off and i push say the unlock/lock doors button, my lights dim as i press each button. Is this a sign of a bigger problem, maybe a bad alternator or bad battery?

Sorry if it looks like i stoled your post but i too have a TB and am looking to doing the big 3 as well but it does look like theres a lot of stuff on this truck i even read that theres a manufacture problem with the stock chassis to engine ground that gets corroded pretty fast, her truck is 100,000 miles so maybe thats it my stock ground sucks.

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