Strobe Light Help?

Ok, I KNOW this sounds SUPER LAME, but I'm putting strobe lights on my 88. More or less, this is just for fun and a 'joke.' Anywho, I bought the stuff. I'm pretty sure I have to drill a hole the back of the head light to put them in there, no biggy. The trouble is the wireing. I want the speed control and switch in the car. Where are the wires located that are going through the firewall? Also, how can I hook this into the fuses so that it doesn't run off the battery? Any help will be greatly appreciated.