Rodents ate my o2 sensor wiring!

Hello all! new member here and adding my first post.

So I have a wiring question regarding bank 2 sensor 1. A heard of mice decided to make my engine bay their home for about a week while my truck sat for 7 days while I was at work. Nevertheless they tore up my engine bay harness in a few spots.....I fixed all but one. That one I'm stuck on is the bank 2 sensor 1 o2 connection located in between the firewall and the top of the bell housing. It's by all means a pain to reach and even harder to splice those wires back together. So I was thinking if I could locate a more accessible spot on the harness and just splice from that spot instead of the pain in arce original spot.....that I might be able to save myself a lot of headache. However I do not have a current wiring diagram of the o2 wiring flow. Any ideas or suggestions on what I may be able to finagle to make this work out a little easier?
Thanks for any input! It's much appreciated!!