In my 2005 Optima I have some bulbs out on my climate control. So far three auto parts stores haven't carried small bulbs, nor did they have a reference so they could look up the size and order them. I can find every type of bulb you could imagine on Amazon - but I can't find a reference anywhere so I don't know what to order! Does anyone have any suggestions? Where I can find a reference, or a good place to order from?