BE DAMN CAREFUL WITH THIS ADVICE:

In a pinch, you can cut the wires going to that switch and splice them together - bypassing it. BUT BE WARNED, if you hit the button with the top UP, the pump will start and try to move the top - with the top latched to the frame around the windshield, this will potentially cause damage to the linkages.

Just don't let anyone/thing press the button with the top up and key "ON".......