I would start to feed him in his crate as well. Put the food right down on the floor of the crate. Remember they want their sleep and feeding places clean.

Also, if you have any kind of bedding in his crate, remove it.

I really do not think he 'doesn't care'. I think he is still just to young to hold it. It sounds like you are doing everything you can. It just takes time when they are so young.

1. Remove bedding.
2. Feed in crate
3. Biggest meal in the morning.
4. Set an alarm, if needed to get to him before he messes in the crate.