I bought a bulb for my 03 parking light/blinker on one side. I changed out the bulb and tested it. It works with the blinker, but not the parking light switch. It's the same bulb (the top orange one). So maybe the bulb was fine all along, I only noticed it when my parking light wasn't showing in a storefront mirror one day. Is that a simple fix? I'm thinking bad fuse or wiring, but i don't know.