With receiver and first remote set to RF, leave them alone and do the following to the second remote:
1. sat
2. press and hold MUTE & SELECT for two blinks
3. enter 0 0 0 0 1
4. with it still set to sat device:
5. press and hold MUTE & SELECT for two blinks
6. enter 9 6 1
7. press CH UP
8. enter the last 6 digits of the receiver ID #, found on a sticker in the access card compartment
9. press SELECT