i just got an alarm for my car and i had power locks and remote keless entry installed. i figured i should get a scanner light for it too.. since every one round here has em. I went to the stores that i usually see them at, but they stopped carrying them a few months ago. the only one i can find was with blue LEDs, but the cops round here have been **** bout that. So i went to radio shack, picked up a kit for a dual LED wig wag circuit, and two white LEDs. I spent the day soldering the pieces togetherand installing the lights. Now, when my alarm is armed, it wigwags my two front 50/50 lights =P i'll post pics up soon.. it's cool

 

heres a video sample
http://www.kimcheeracing.com/lights.avi