HOW TO INSTALL CRACKEDBACK'S HEADLIGHT HARNESS

How often is that situation in play? Headlights are on most of the time with the engine running
I agree, but it will happen.

Unfortunately, there is no perfect location to pull power in all scenarios with an OEM wired muscle era mopar
Pulling it from the starter lug where the battery attaches would be my choice.
Don't get me wrong I like your product I just found the main power attachment odd.