Meguiar's #39 is also great stuff to use there, one-pass clean in many cases (and tips, brushes when needed as said above, sure).
Whenever I have a towel moisten with 303 aerospace protectant, before putting them to the wash bin I may pass that towel on the rubber seals for a spotless detailing. Just a simple tip for getting the most of your products being used whenever possible, and the rubber will look almost factory good (sure, depends on case but improvements are mostly always noticeable).
The 'lightly moisten' towel with remaining product helps to avoid streaking at painted parts, although 303 is very easy to be wiped off from paint with a MF towel.
Be sure to only apply protectant (if you will) to 'squeaky clean' rubber seals, otherwise you may do some mess...
And for the same reason as cited above by our friends, I won't remove seals as well, sorry, but I can still make good work of them, that's true.
So you will.
Good luck,
Kind Regards.