When you feed him in the crate and close do you walk away? I had a foster that was terrified of the crate and also suffered terrible anxiety w/peeing in the crate too.
So I would feed him in the crate and then close the door and sit right there with him. At first I only closed the door half way, did that way for about a week then was able to close it all the (without latching) for another week. I would sit right next to the crate and praise him for eating his meals. Then I would scoot a few feet back at one meal, move back at the next and do that for a for a few times. Then I would stay at the few feet back.
It is a slow process but it really really helped him in his crate training process and getting him over his fear. I was soon able to feed him in his crate and walk away. He was running to his crate and sitting for his meals. He still had his anxiety for long periods w/the peeing problem but we even worked on that were we could leave for short times and he wouldn't pee in his crate
