What may help w/your communication w/your son is to actually get down to his level. If he has a favorite program, toy or game, then you will need to talk to him about these things, ask questions, play w/him and just listen to what he shares, then validate him. This very well could open the door a bit for you and your son and also a better bonding experience.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
