Ribbon cables are inside.
You have to put firmware 4.8 to use Tidal.
There are links in this thread to get the instructions and the firmware exe file.
However:
Firmware 4.8 does NOT apply to products running versions of Naim software prior to 3.00, or to any product with an n-Link connection. These will continue to function as they do currently – please DO NOT attempt the upgrade, which could stop your product from working at all.
If that applies to your uniti, the simplest solution is to plug a wiim streamer into it.