folks/shogun/ferret, i did some multimeter tracing and have some ideas. wanted to run it past these forum for feedback and advice.

the 1st. diagram shows what the wiring is right now and the dotted lines are where i'm going to tap into after the transfer.
2nd. diagram show where the 2nd. fuse holder (item in center of the picture).

questions:
1. will the main fuse (FUSE a) in the engine bay take the current load when starting the engine bay (now that the current is coming from the back)?

2. will the wiring harness (3) (the one connecting front to back) take the load?

3. where is the best grounding point in the rear seat - can i use of the rear seat belt bolts?