The cover holds them in there. The boards are like 1 x 1 and maybe as thick as a piece of construction paper. Ive had them about 3 years and they still work perfectly.
Every bulb in my truck is led... I did all my switches in blue leds. Been thinking about swapping them to white.
The switch panel AND the cruise control too? You aren't playing around! What did you use for the door switches?