cavionchrome

forgot to mention..this will be going on my truck..12volts..that mite help a lil...i have 400 led's...100 for each side and 100 for front and back...each led has a resistor for use in a 12v system.....also if ya have any sorta simple but cool idea's as to maybe like a fade on..fade off type thing to add to it..that'd be great..i'm getting my stepdad to help me wire everything up

ok heres what i'm wanting to make...i wanna make my own underbody LED kit..i have the led's and resistors..heres what i have a question on tho...i want to alternate colors in the tubes..blue white blue white etc....i want to hook blue to one circuit and white to another...what i want the system to do is switch from white to blue to white to blue back and forth not TOO fast but not too slow...without having to manually switch it back and forth..i'm looking for ideas on how to wire up an automatic switching device type thing...where all i need to do is switch on power..and it'll start changing back and forth....all help is greatly appreciated and if ya need more info i'll do my best...kinda have all this in my head..just don't know how to make it..i'l need a parts list and diagram if ya wouldn't mind..also where to get the parts..ie. radio shack? thanks alot in advance...later Eric