[Lmackattack]

I use 3mm led for cab roof,turn,and trailer side marker lights.

5mm for rear tail lights and headlights.

Buy red,amber and yel glow. I just buy the standard type looks like a clear dome.

You can buy pre wired/ resistor wired led for use with 12 volt power.

Simply install them,solder the leads together and connect them to power.

I power them from my RX via a plug. I also use plugs on my lights so I can remove the cab rear wall etc...

I can snap a few pics if that helps..