I have a 1991 750il with stock radio. I do not have code nor do I know what the procedure for entering code is please halp. thanks. DAVID

Model Ke-91 zbm
spec no xh/us
serial PkI0101238

The dealership will give you the code for the radio. It's a short code all you do is punch in the numbers when the radio asks you to and you're good to go.