Toyota 4Runner - DC from 7 pin connector

[Denny_A]

I now have a 2000 Toyota 4Runner. The dealer had the 4 pin connector replaced with a Bargman 7 pin. When I checked the DC power pin (#4) - there was no voltage under any condition.

Called the dealer and informed them. Turns out the job was outsourced to a truck mod/maintenance shop (good rep). Apparently, they assumed only the original 4 pins needed power.

Dealer sent me to them to finish the job. They used a 20 amp resetting CB (ok, right?). When I checked the Pin #4 at home, it is powered continuously. No isolation when the ignition is off and engine stoped.

Question to 4Runner/Toyota experts - is this right? I don't think so, but wouldn't want to place any bets. I don't want to have to install a Batt Isolater if it's not needed.

Thanks - Denny_A