Amazon.com: BobWire DAT1 Adds a 12V Trigger! Compatible with SONOS Connect, Echo Link, ChromeCast Audio, TV, Anything with an Optical Audio Out. Auto Power On Amplifiers & Fans. NOT Compatible with AV
12v trigger | AVForums
12V trigger cable | AV-Connection
Looking to build a simple solution to control 12v amp trigger | Audio Science Review (ASR) Forum