I have a client who wants to wake his kids up in the morning without actually having to go upstairs. He's asked for an intercom to just yell at them over the system. We have a Prodigy PMC2+ installed in the family room with iPhone apps.
I have two choices install a completely separate system or try to do something with the PAMP4x100.

Is there are cool way to tie an intercom into this system or some other solution. I asked if he would want to play some super loud .mp3 file every morning at the same time to wake them up (where their control would be limited).

Any suggestions?