How do I change the bulbs that are out on the climate control and also the head light switch on my o4 Dodge Ram, how do I access the bulbs?

For the headlamp switch, you are out of luck unless you want to buy a headlamp switch.

Access the Climate control as follows:
1. Remove the steering column opening cover
2. Open the cup holder and ash tray
3. Remove the one center bezel retaining screw
4. Gently pry out on the center bezel to release the snap-clips and remove the center bezel.
5. The light bulbs can be accessed without removing the climate control from the center bezel