Care to explain? Isn't it a pain in the buttocks without the dash removed?
The only one that commonly goes bad is the fresh air/recirculate actuator and it can be done without messing with the dash at all, though I did remove the glovebox compartment so I could stuff a drop light in from above. Not entirely necessary but I found it helps.
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Tools needed for the job: 1/4" ratchet, 1/4" wrench, 7mm socket, 7mm nutdriver bit, gasket scraper or similar tool
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It sits just above the top of the carpet, and there are only two screws. The lower screw you can reach without issue with the ratchet and socket, it's the top screw that's a little tricky.
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Not the best pic as it's tough to hold the camera and the tools, but in this one I've got the nutdriver bit on the top screw, holding it in place with the flat part of the gasket scraper, then I can reach up with my other hand and turn the bit with the wrench. Sounds ridiculous but it's not that bad. Once it's a little bit loose you can just reach up there and turn the bit with your fingers.
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The vent position actuator (defrost/dash/floor) is easily accessible once you get the OEM radio "brain box" out of the way which is easy. Haven't had to replace one of these yet but I've gone in to clean the slider linkages as the factory lube gets gummed up over time.
The temperature blend actuator sits between the center vent piece on the dash and the glovebox, so once you pop those out you can get in there and remove it. Not super easy but not hard. I've only had to replace a couple for going bad.
Pulling the dash is much, much more work, and not necessary to replace any of the actuators.
Richard