I recently bought a used IS350 and there was a small patch near the door handle what seem like some patch work had been done to repair either scratchs or a dent. Anyway, that particular area is not glossy like the rest of the car. It probably needs a clear coat. I first tried clear coating can spay from my local auto part store and no luck. It still looks dull and clear coat actually made it worst. Is this something I can fix myself with another type of clear coat or should I go to body shop or detailer? It's a small area but annoying cause I see it everyday since it's right there near the driver's side handle.