I can understand the problem your having. My son had grown up in a latino culture in South America, and now he was living as an American. You haven't been around really, and he has been the man of the house. LOTS of time. With the boy.
Boys like to do boy things.
My son is interested in law enforcement and the military, etc., and because myself and my new hubby are in the biz of security, he finds it exciting. We do things together. Karate 5 days a week , go to the gym the other 3 days., and work out, together, we go shoot guns, reload, learn gun safety. He is an explorer with the police dept. Your kid may be different, so, you need to center yourself around the things your boy loves and wants to do.