How do you program the radio on a 1999 Hyundai Sonata?

It is extremely difficult.

1. Take out your car key

2. Place in door lock to unlock door on drivers side.

3. Insert said key in ignition starter switch

4. Turn ignition switch with key inserted to engine start.

5. Start engine

6. Place car in gear, either drove or reverse, depending on how car is parked.

7. Drive to nearest Hyundai dealer.

8. Go to the first mechanic you see.

9. Ask him/her how to program the radio.

I bet they can do it on the first try and I also bet they wont charge you to do it. Dummy