I have a Niles A4.6ci in a room about 80 feet from the family room where three components are located that I would like to use in the multizone system. These components are behind a cabinent door, and I'm using a xantech block with a sensor and emitters to control the equipment (the block only has one IR in).

The niles will control 4 pieces of equipment, it has 4 individual IR outputs for each component. Would it be possble to combine three of the ouputs into a single cable that would input into the xantech block in the faily room, so I can use the emitters that are already there? (I would need to get a xantech block that can handle two inputs)

What type of equipment would be necessary to accomplish this?
thanks
Roger