Here is what Crutchfield says about the remote:
Use a universal remote control
And here is a link to the page where at the bottom you can ask them for help:
Multi-room Video with a Home Theater Receiver (crutchfield.com)
Use a universal remote control
An RF (radio frequency) remote can be used to control components that are out of the line of sight of typical IR (infrared) remotes. RF signals can pass through walls and ceilings, which makes this type of remote a good option for controlling your connected sources from another room.
And here is a link to the page where at the bottom you can ask them for help:
Multi-room Video with a Home Theater Receiver (crutchfield.com)