Installed the Long Beach radio from Retro Sound. Includes SiriusXM, iPhone compatibility, 2 USB ports, Bluetooth, and more. Works really well. I wish they had a Porsche 911 specific install kit but I used their DIN repair kit and was able to perform a very clean install with the unit mounted solid and secure. For the casual observer it looks like a vintage OEM style radio. They have no idea it is a modern unit. Porsche enthusiasts and concours judges would notice the difference but most will not. Love the quality, features, and sound!
I still need to add some basketweave trim behind the radio bezel.