ddvette, I don't think I can help answer these questions, but there are a number of Fog Light DIY threads in the DIY section. I know, because I'm about to order one and hook it up myself. I don't know if you've already read these, but here are a few of the approaches some owners took...
DIY: of complete FOG LAMP install
DIY:REAR Fog Light install with New harness for US spec 370Z + Radar hardwire w/pics
DIY: Rear Fog-Lamp "Z" light
http://www.the370z.com/diy-section-d...lamp-easy.html
If you've already seen these, then sorry for posting redundantly in your thread. Just want to help. Good luck, buddy!