It's possible, but doesnt look good. Basically you'd just cut the wire (or put a switch in so you can choose whether or not to have the corners on). In the sedans, I know the bulbs are 1157. They use 3 wires, 1 ground, 1 for parking, 1 for turning. The green wire is the turning wire. I would definitely suggest a Haynes manual, works wonders.