Help desperately wanted to interest ASD 4 yr old in books

Hi everyone.  I've got a 4 year old boy with ASD and I cannot get him interested in books (either listening or reading).  He knows his phonemes but I need to get him to even want to look at books before he can learn to read.  I've tried picture books, rhyming books, interative books.  I've tried turning the stories into games with something for him to hold, puppet shows, funny faces, funny noises (the only other thing I can think to try is doing cartwheels to gain his interest and I'm too old for that).He will allow me to read to him if he has pen and paper to scribble on).  I can't get him excited about books in the way that neuro-typical children are.  I usually use the Oxford Reading Tree series  but Biff, Chip and Kipper hold as much interest for him as War and Peace.

Does anyone know of any learning to read books which might appeal?

Thanks everyone and I wish you well.