Cambridge audio 540A

Hey everyone, I’m exploring ways to repurpose some unused gadgets from my drawer of shite. I stumbled upon 3 first-gen Chromecasts and a Cambridge Audio 540A amp. Considering setting up a multi-room audio system, initially planning to use Broadlink RM4 for control. However, I noticed A-BUS & incognito stickers and telecoms sockets on the amp’s back. Any ideas if these can be integrated into Home Assistant?"