david 2007, put some orthodox stuff on his computer and introduce church music also.
once he got used to this, play liturgical music for him, and then see if u can arrange for him to visit your church.
some churches have a 'baby room' where people with little kids can sit and see (and sometimes hear, if there are speakers in teh room) the liturgy. so if he is restless in church, have someone sit with him in the baby room.
i have disabled relatives and friends, and i can see for sure God touches the life of every one of them, even those who are non verbal and paralysed. in our church, we risk the other extreme (to worrying about their faith) and some people almost venerate disabled people, as we consider that they can be especially close to God.