[Drbrown]

My '47 is different. The battery is at passenger side of engine compartment in a more advantageous location. Regardless, if the car is not being kept "judge-worthy" one could run longer cables between a battery and master switch, adjusting gauge of the wire for distance if and as needed and providing some sort of protective sheath covering to avoid long-term abrasion between the cabling and car. My switch is thru the fire wall behind and slightly below the glove compartment, with its terminals on engine side and the switch handle inside the car. This provides easy driver access and added security if the car is locked. Select a switch that has the highest amperage capacity available. Unused for periods of time, various critters may chew-off any wiring insulation and cause a short, so I turn off the car system whenever the car is garaged.