Where is your power to the amp fed from? Main battery or ???i would love to give as much info as i can, just wanted to get myself out there. amp is a skar rp-1200.1D, with a skar 12” sub. loc is by metra, i’ve only done one other system with an loc before and it wasn’t for subs just marine speakers in a jeep, went very smooth. i’ll take some pictures of the loc and where i’m tapping in. i planned on just wiring it into the factory amp because i have no rear pkg panel speakers, i grounded the loc with the battery and rabbits 12v to a cigarette lighter in the backseat, if you have any suggestions on how it would be easier with bypassing the amp all together or anything to help that would be nice, also no i have no cut any factory wires at all, plan was to just tap the door speakers with the loc and give it power and then run the rca back to the amp, my problem right now is that i may have chosen a bad ground for the amp it’s self as i’m getting no power indicator on it at all, first i grounded with a self tapper under the carpet of the trunk and now it’s on a seat mounting bolt
if you are only adding subs (and amp) bypassing the factory amp isn’t possible. You need your front fill to be sent from it and subs from the Skar amp.
Let me look up a few things and I’ll get back to you tomorrow.