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I always recommend a battery cut-off switch on an old car, especially if it has any existing "ancient" wiring.

There are too many instances of cars catching fire in storage. Rodents love wiring and are not very good about disconnecting the battery before chewing on them.

It also eliminates any parasitic drain that may cause dead battery, especially if your car has a clock.

On our '37 convertible, it's on the floor right behind the seat. So it takes all of 5 seconds to reach down and turn it on or off when getting in or out of the car.

I have one I need to install in the '54. For the last 15 years, I've always popped the hood and pulled the positive cable off the battery, which I keep loose enough to wiggle it off. But I will probably install that on the firewall above the pedals somewhere.

I need to do the same. Just haven't found a good spot for it on the '54. The place that others have used (firewall, far right side of the engine bay) is already taken up with something else. So I need to find another solution.

-Kevin

Mounting behind the seat wasn’t an option for me since my car is a limo. The seat back doesn’t move and mounts right to the divider.

I thought about mounting on the firewall, but really didn’t like where that put things on the engine side. It would have been right next to the voltage regulator and since I was switching the negative (hot), it put the connections in a spot where it would be way too easy to get up against accidentally.

So, the bracket I had made works great. It isn’t as convenient as being inside the cabin, but it is MUCH more convenient than under the seat on the battery. Also, this was a way of doing it without permanent modifications to the car.