Okay, I'll be the first to chime in.
The first aux switches were for my off-road and driving lights on the A-pillar (I later added the red one for my air pump). They are made by Rugged Ridge and replace the plastic piece that normally goes there.
Lest year when I installed my lockers, I put the switches below the head unit. I understand that this won't work for newer models (mine's an '07) because I understand Chrysler decided to put a cubby or something there.