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I'm not sure about the rest, but for the HVAC on my Firebird, I used these side-only 74 / T5 LEDs. I got the kind with LEDs only on the side since any front ones would face black plastic and would be a waste or possibly make a strange glow spot. Removing the original small glass bulbs was difficult. They wouldn't pull out. I had to break them and pull out the pieces with pliers.
Did mine years ago and got them from superbrightleds. By the way i ended up putting the stock bulbs back in the door panel because once i put the door panels back on one side was a lot brighter then the other for some reason even though outside the panel they were both really bright. I don't have a pic with the headlight switch in it but it's the same color as everything else.