Fast easy cheap, go to your parts place and get the square heavy duty truck (18 wheeler) realy. You may have to make a pair of leads to connect it up. Pop off the cover and you will find a pot (adjustable Resistor) in there that allows you to dial in the speed you want. Big rigs need these because of the endless variations of turnsignal lamps and bulbs they may use. I use them in my cars just so I can set the speed I like. I use a speed just slower than normal cause I think it gives my car a cool subduded look that just gets your attention as a bit different. May sound funny but think of how a fast blinker makes you look nurotic and spazey <img src="/forums/images/graemlins/nana.gif" alt="" />