I am looking to replace older swtiches and amps to provide stereo audio in 3 rooms. Speaker wires run to a central location. I am searching for a stero receiver which can play different music sources. Preferablly the "receiver" will be internet enabled (ethernet wire or WiFi) so I can source internet radio statios and services. Lastly it would be a home run is the receiver could be controlled by an Android App. Advice pleaase?