I was just giving you a hard time, not trying to an a-hole or anything.
Plan on using an Arduino with a MPC SPI board to control the CAN bus? I was looking into this a while back, and have the parts, but abandoned the project as my coding skills really suck. I just opted to do the swap and it was a lot easier than I thought.
With the dials, I don't think there are 25 distinct speeds, think there maybe 6 with 4 clicks between each as I never really hear or feel a difference in speed. Could be wrong though...
Edit: Just looked at the HAC FSM manual, seems there are only 6 speeds for the blower motor:
1st 25%
5th 33%
10th 43%
15th 53%
20th 63%
25th 81%