Getting ready for the truck roll..

So I'm about to unbox my Bolt+, and a call to Charter is on the horizon.

I haven't had cable in years, and I want to avoid a debacle of cabling mess when they arrive. I know they'd rather drill some new holes in everything possible, but I'd like to use the stuff that's already present if possible.

Is there any tool I can use to check continuity? The coax unfortunately comes in on the far side of the house from our living room, and all the wiring is run inside walls and above finished...

Getting ready for the truck roll..

Getting ready for the truck roll..