Heated O2 sensor?

[hogdoc]

Ok I've searched a bunch of threads on heated O2 sensors but what I haven't seen is where they're being hooked up to. I need to find an under hood keyed hot to tie into but my back is so screwed I can hang upside down searching for one, can anybody tell me where to find one that's easy to get to? I've wrenched on every vehicle I've owned and been a Harley mechanic for the last 8 years but just had to pay someone to install my headers. This F'd up back crap SUCKS!!!

 

[4X4HIGH]

I ran the keyed hot wire inside the truck and found one on the fuse block inside.

 

[shaun89]

x2,just shove one through the firewall from the fuse block,btw,sorry about ur back,it means ur a hard working guy!

 

[hogdoc]

Thanks guys, hadn't thought of going inside. Pain can make you forget the basics!