You only need run two extra wires from underdash to the front end and one to the rear , judicous positioning of these wires and use of black zip ties will render them almost invisable as will using only black wire .
I use / recommend the Signal Stat #900 switch , it comes with clear color coded instructions , I think CD and other vendors sell the old Truck Lite
(copy) switch really cheaply .
Or , you could drive to sunny So.Cal. and I'll instal them for you .
