Cover the IR sensor on one of the units first so you can set the other one up.
On the 2nd unit press Menu-->Parental, Fav's & Setup-->System Setup-->Remote-->Receiver Mode-->change it to AV1/AV2.
Than move the toggle switch on the remote over to AV1. Press and hold the select and mute buttons together until the light blinks two times. Once that happens press 00003 and that will set it up for a different set of codes.
Than one unit will be controlled from the DIRECTV spot and the other will be AV1.
On the 2nd unit press Menu-->Parental, Fav's & Setup-->System Setup-->Remote-->Receiver Mode-->change it to AV1/AV2.
Than move the toggle switch on the remote over to AV1. Press and hold the select and mute buttons together until the light blinks two times. Once that happens press 00003 and that will set it up for a different set of codes.
Than one unit will be controlled from the DIRECTV spot and the other will be AV1.