Even easier is to just use the parking lights for turn signals. No state that I know of requires parking lights so unless you leave it setting on the shoulder of the road or like to sit on the porch and watch the grill glow, what good are they? It's never enforced but in many states it's actually illegal to drive on the road with just parking lights. Just cut and cap the park light wire and splice in the one from the turn signal switch. Use the brightest(usually biggest) bulb you have room for.
