I can add some.
For the light switch, pull knob out to the headlight "on" position. Depress the small button on the back and pull the shaft all the way out. To reinstall, simply push the knob/shaft back in. (no need to press button)
The key cylinder is removed by putting key in, turning to the ACC position and inserting a paper clip or similar in the hole, press in and turn past the ACC position. (counter clockwise) The cylinder will pop right out.
I've never had much luck using the paper clip method as most times, you have to press in fairly hard and it tends to bend. Instead, use a small allen wrench that fits the hole.
If it's stubborn, spray a bit of WD-40. Sometimes they can be tough removing for the first time but it will come out...