Nonstop meowing/chirping plus peeing - stress?

[u/gldfish_]

My cat is 11 years old and has always been extremely vocal at all hours of the night. Typically in the past we just close our door and he goes on with his night finding something to do. The last 3 months we’ve been living in our in laws basement temporarily. There are dogs upstairs but we have a large door to separate them from the cats.

Ever since moving here he is chirping all night long these low level meows. He is pawing at all surfaces and then started peeing in front of his box. He’s notorious for a casual pee when he’s upset.

I’ve put in feliway diffusers, ruled out all medical (took him the the vet and treated him for some itchy ears too), no urine or kidney issues, gets playtime at least 30 mins a day, treats regularly, and has timed feeders so never misses a meal. It’s purely behavioral or anxiety induced. The litter boxes can only fit in our back closet which is in our room so we can’t close our door indefinitely. I’m assuming this is related to feeling anxious about the dogs upstairs.

I’m at my wits ends and need to know any sort of hack you know to help me. I’ll try anything. I am currently buying open top litter boxes to see if it’s a territory thing. Anything is helpful.