The switch is required equipment on the roundtrack cars we race, accessible to the driver and the emergency crew in case of a crash. It's usually mounted on the roll cage near the driver's right hand, and an easy reach from the passenger's side window for a fire crewman. Try the JEGS catalog, roundtrack section, for a good, heavy-duty switch.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!