I just purchased a brand new top of line MacBook Pro to update my processing power for recording. I have a Presonus StudioLive 16.4.2ai interface that I have used for a long time and love it. I've purchased both apple adapters to get the signal into the computer but interface will not appear? What did I not do? Am I missing something? I have the Firewire 800 to Thunderbolt 2 adapter (apple) and the Thunderbolt 2 to Thunderbolt 3 adapter (apple). I figured this would work but NOTHING. Any help is greatly appreciated, I'm dying to track on the new computer.