its actually really easy well the making of the leds onto a pcb board is easy i use to do this with my brothers and his friends motorcycles i made turn signals brake lights etc. i bet if you look it up on google it will tell you how

 

yeah. It's just alot to explain on the forum, but my friend is getting me those pics. As far as taillights that gets a little bit crazy w/ more LEDs and using a pwm.

 

Nice job. Came out clean.