Truck battery isolater built into 05 Arctic Fox camper?

If you carefully remove the positive lead on your TC battery you should have no votage on that lead. Becareful when you remove that lead. Make sure it doesn't touch any other metal parts. Now start your PU. Now you should have voltage on that lead. If there is voltage on that lead when your PU is not running then they are not disconnecting & you could run your PU battery down when parked. Personally I would prefer a solenoid over a manual switch because I am old & forgetful. Those solenoids only cost about $20.