Ok so the caveat is the guest is my mother - but still a guest!
We were often at odds during my childhood as she loved a noisy house. TV or radio always on in in the background. I hated it and had a lot of sleepless nights because of it.
Anyway when she comes to visit she follows the same routine as at home. She loudly plays a radio show she always listens to, taking it into each room as she goes. Last time on Sunday morning she stayed over and played it loudly in the shower while I slept next door - it woke me up significantly earlier and annoyed me.
When I came into my living room she kept playing it. I think it's rude tbh - although I'd like her to feel at home but it isn't the same as being home. Am I being a bad host to say can you please keep it off when you stay?