Why not just attach the park light lead to the tail light wire? It's powered up anytime the switch is on, either park or headlight position, and it has nothing whatsoever to do with turn signals.
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!