Hi everyone. This is my first post here at HTF and I have a question I am hoping I can get some advice on. I'm in the process of building a home and have already prewired my living room for ceiling mount speakers in the rear and 2 speakers on my covered patio. I also wired in a wall-mounted volume control for the patio speakers. My question is this: What do I need and what would be the approximate cost of being able to have 2 different sources playing at the same time? An example of this is if I want to have a BBQ at the house and watch the big game inside on the surround sound, but the ladies want to listen to the radio outside on the patio. What would it take to accomplish this? Thanks in advance for any help you are able to offer .