2007 Honda Civic Si Push Start Button?

I have a 2007 Civic Si and I want to install the push start button. Do I have to remove my fog light button because it only has an extra slot for the VSA button?

This is what you're looking for. It contains pictures and wiring diagrams:
http://www.8thcivic.com/forums/diy-honda-civic-electrical/116538-ctr-push-start-button-diy-install-w-pics-wiring-diagram.html

Go to this link and down load a FSM (Factory Service Manual), it contains all wiring diagram and everything else for your Civic, and it's free:
http://www.spoonertuner.com/manuals

Anything else, this site will help:
http://www.the12volt.com/

Edit: E mail if you have more question.