After reading your last post I thought for a minute you were talking about my little guy.
He's the same way when it comes to his food. For now he likes the small kibble mixed with about a tablespoon of the wet dog food stirred up well. No water, no heating.
Another thought is how much are you giving your little one. Are you giving him too much at a time. Maybe if you use the same kibble but you use different types of the wet each week to mix things up a bit.
If you figure it out let the rest of us know because I'm sure we're not the only ones with picky eaters.