Battery cut off switch
Here's how I look at it
You guys might ask yourself "do I just want to squeek by the rules" or "am I really doing this for safety?
So you're layin' there on the ground half dazed, wonderin' why the steering wheel doesn't look right, and the road to ruin is layin' on the roof.
Somebody comes along and kills the battery, BUT YOU STILL HAVE a live no8 or 6 running up front to the alternator.
I for one would prefer that ALL of it is dead, and that leaking gas, oil, is not gonna light off because the alternator has a short "up there"
It's only one relay. It's only one no14 to the rear. It's only a couple of changes to the wiring up front.
You guys in better shape than me should be able to install that relay in a couple of hours easy, and drink a beer or two on the way.