Putting the parking light wire on the tail light connector will make the parking lights stay on with the headlights. Lots of newer vehicles do that, so there shouldn't be a problem doing it that way. Does the universal switch have the dash light dimmer and the dome light ground built in?
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!