Do you mean you dont want your mirrors to move at all?
Or you dont want the memory to move them when you unlock with the key fob?

If the first, there's likely a fuse, but there's probably some other feature on the same fuse too.. not ideal

if the latter, set your memory seats with the memory seat button only. This should eliminate any mirror movement as to set the mirrors you have to set the seat and within 5 seconds, hit the remote to unlock. (I accidentally set to 'lock' on the remote so when I realized and set it to 'unlock' it worked well)