Insert the key into the cylinder and turn it to the ON position.
That 'plate' you see for the horn is held in place with a split ring. Press down on it and remove the split ring. Now pull the plug you see down by the lock cylinder with needle nose pliers. Next remove the screw holding the lock cylinder in place.
Senators and Congressman should wear uniforms like NASCAR drivers so we could identify their corporate sponsors....
If what doesn't kill you, makes you stronger, I should be able to bench press a Grand Cherokee by now!