Mechman 370a installed and Big 3-Highlights and Interior dimming/voltage drop badly

[Keagan-Z06]

I think I know what To Nasty is referring to. I will take a picture of it when I get home. I am about to order XS Big 3 upgrade kit and would also like to know any potential problems.

[Keagan-Z06]

Would it be this? Just running the ground wire through that hole?

[ToNasty]

Yes

[feathered1iron]

I think it may be clipping because it will cut in and out, maybe the gains have just been set to high this entire time?

[feathered1iron]

And as far as running through the battery sensor, how is that done exactly?

[Keagan-Z06]

Feathered, you tuned with Dd-1 or olisicope?

[Keagan-Z06]

And as far as running through the battery sensor, how is that done exactly?

I was wondering the same, but it may seem that you just run the grounds through that, the existing and the one from the big 3? Not sure if 2 1/0 wire will fit. I wanna know before I order. What kit you went with?

[feathered1iron]

You would run the big 3 ground through it I am assuming but do you splice in the ground to the battery sensor or just through the battery sensor harness and it recognizes it? I didn't do my install keagan so I do not know what they used although I didn't order per say a "big 3 kit" they just ran the 0 gauge they had at the shop.

[Massivespl]

Pictures would prly be best of your wiring and alternator. But most likely if a mechman 370 didn't fix your voltage problems you either have loose or corroded wiring.

[feathered1iron]

Okay I will have them check it out for sure