I don't buying a USB-C to Audio IN adapter but since using the USB C voids the warranty ( !!!!) PLEASE make it consumer usable. Bluetooth is great but if I am streaming music I want to hear throughout the whole first floor (like I currently use my Echo Dot for), I need to be able to truly connect (not Bluetooth) a good external speaker! This also piggybacks on someone else's request to Allow Portal to work with Alexa's Multi-Room Music ...