I bought my Optima used back in February but I didn’t have much occasion to use the deicer before the weather warmed up. When it started to get cold the deicer didn’t work. I checked the fuse first and it was gone but easy to replace but the relay is gone too. My local parts store didn’t have anything under deicer relay so I checked with the dealer and their parts guy couldn’t tell me what relay it was either. Can anyone help?