battery bypass

Watched a LOT of videos and threads here - goal is to simply remove F42 Fuse, disconnet the Negative from the AUX. Well, simple I though and today I went outside to do this after finding my main battery is constantly draining. I am pretty sure its the AUX going bad. Anyway, I opened my Fuse Box...

This issue has been touched many times here, but none of the solutions have worked for me. A good while ago, my 2021 Rubicon (purchased Nov 2020, currently 29k miles) started requiring 2 attempts to start the engine. I'll attach a video of what happens EVERY time, but everything cranks...

I've seen quite a few posts related to failed Aux batteries causing flaky or dead electronics, stalling and failing to start/auto restart. I've come up with a simple way to temporarily bypass a bad Aux battery (also blown PCR fuse or bad PCR) and get back on the road. Warning - this post...