Alright, here's the deal. I've already tucked my harness on the passenger side of my eg. It enters the firewall on the left/lower area. I had to extend only a couple wires. It was very simple. However It's sorta visible. Being the perfectionist that i am, i want to relocate it underneath the heater core inlet/outlet. Does the harness need to be extensively lengthened to accomodate a hole in that spot? Thanks

 

it shouldn't need much, but depending on how you route the harness on the engine you may even be a little long.

 

alright thanks... any other input?

 

^^^