I have come into possession of a FS Arjent S2 lightbar. This is my first LED bar and have realized that I need a serial controller? I've done some searching but I'm not exactly sure what I need....or where to get one...or how it works. I would love to one day make this light blink & flash like it was created to do so please, if you can help me I'd appreciate it. If this is posted in the wrong place, mods please move.