Originally Posted By skicker
I used one very similar to this...
https://www.summitracing.com/parts/prf-30204

This one is not identical to what I have...for some reason I can no longer find the one I used...
In the end it simply allows for an interior or under dash mounted toggle switch that disconnects all power...
Mines been on for more than 5 years with zero issues...


It looks like you must shut it off whenever the car is not in use. From the instructions it looks like the solenoid is activated via the switch (switched ground) so if you forget to turn it off when parked the solenoid will still put a drain the on the battery.