Let me suggest a different method of making those park lights burn with the headlights. Find the wire that feeds the tail lights and splice that one to the park lights. If you connect headlights and park lights, you'll have headlights in both switch positions too, unless you put a diode in there!
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!