Hi @Cr1st0f001
Welcome to the Sonos Community!
Are you still experiencing this issue?
Your last statement is key - the Autoplay for your HDMI input is overriding the Autoplay for your Line-In. This is expected behaviour and will continue as long as the TV is on. You should find that if the TV is off and you’re listening to a streaming service or Music Library, playing a record on the turntable will make the Amp switch source automatically. If this is not the case, please get in touch with our technical support team.
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