Silverado0618

Anyone get schematics or tap into the bose amplifier to get signals for sub and door speakers? I know I can go to LLJ customs and buy a harness for 250, but if I knew what wires to tap I could easily do it myself. Has anyone done this at all?

I have a 2020 sierra at4, have my equipment sitting in garage, nothing installed yet. taramps smart 3 taramps 1200/4 6- 6.5s massive hippos 2 sets of German maestro status components factory battery front xs d3400 battery (wanting to put somewhere else in vehicle) I don't know what to do about the 170 amp stock alternator, as I'm sure that's not enough. What has everyone done connecting the big 3 to the battery and install? Any pictures? What about getting thru the truck? Anyone run outside or go thru the cab? Would to be beneficial to run more than one run of 0 gauge wire to the back? How about running a ground from the front to the back? Any opinions or suggested would be greatly appreciated. Thank you.

I went to dealership and got the X1 and X2 pinout for my Bose amplifier. however when i look behind the seat the pinout colors don't match what I see on the amplifier. I am looking to add a dsp after Bose amplifier and don't need to spend the $240 at llj customs for a harness when I can make one. I just need to know which wires are what. I am wondering if anyone on this site has done this before or have the right schematics or pinouts for the speakers. Appreciate any help I can get. Thanks