I spliced one a couple of years ago. It worked fine.
I cut the wire pairs (about 5 of them as I recall) to different lengths so the butt connectors wouldn't all sit in the same spot. I shrink wrapped each pair, too. Tedious operation but it worked.
My .02
yes no problem mine was only co ax but if you have a temp sensor it will be more wires ..
Yeah has temp too--I'll guessing about 3hrs of work--it will give me something to do
Not unless the splice is buried somewhere. And make sure you have good wire insertion into the butts before you crimp. Little tiny 22GA wire is a PITA to work with, so take your time...