"You have enough traffic advisors for a small police department plus some. "
Actually, they are all red & blue. The Liberty was 1/2 red & 1/2 blue with 2 ambers to the front and 2 ambers to the rear. The lights on the side of the bed were 3' blue on each end with a 2' red in the middle. The Raiders were R/B as were the Talons, the 400s, and the TIRs.
I used this truck on the Interstate nightly for years and the side lights were very effective when the truck was presented sideways across a traffic lane. (Note: most police cars have only very effective front and rear warning lights, with little off-axis impact. When parked at an angle, or sideways, little, if any, warning is projected to approaching vehicles)
As far as the inside wiring goes, I use remote switches pretty much exclusively. They make for a very clean install and I can activate just the individual warnings I want at the time, without having to light up everything. Here is a link to one company's offering:
http://www.able2products.com/Update/31_8040_v1.htm
I brought all outside wiring through rubber grommeted holes I drilled under the rear cab floor and through an existing rubber grommet on the driver's side of the firewall