KF5LJW, thank you for the advice. I've long been hesitant to install my HF mobile rig per the advice found in transceiver manuals and other resources... something just never quite made sense. I wasn't in a rush so just put off the install until I gain confidence I won't set my wheels ablaze. What about those of us who have the BMS system sensor on the positive battery lead? Should we bypass the BMS sensor and connect straight to the battery terminal or to the "car side" of the sensor? As WB2LBV implied... ...this isn't our father's automotive power system anymore.