A) At our hospital, we have a central music system that plays Pandora from the circulating nurse's computer. Keeping this configuration, we use an A/B switch that allows CanaryBox to be bypassed in case the anesthesia station is off or has been moved to a different room (because our machines migrate, we've elected to hardwire instead of using Bluetooth). We chose 35 foot shielded and plenum rated 3.5mm audio cables for signal integrity and ease of installation.
B) A quick setup with Bluetooth is easy. This is best for stationary machines where a Bluetooth transmitter and receiver remember pairing. To be sure Bluetooth is okay for your workspace (it usually is), check with your facility's biomedical engineering department.