We bought a new Roo and the combination of me disliking blind spots, being new to towing, and having nerd'ish tendencies with a couple of open weekends yielded the Camper Cam Project.
Lots of pics and details here:
Towing Cameras - jasonsmith's Photos | SmugMug
(each image has a comment at the bottom explaining what is shown in the image)
Happy to try and answer any questions!
Jason
Parts List
From Amazon
4 Cameras:
http://www.amazon.com/gp/product/B000MCKA5Q/ref=oh_details_o04_s00_i05
1 Quad Channel 7" Monitor:
http://www.amazon.com/gp/product/B006ZOEQZU/ref=oh_details_o05_s01_i00
1 Suction Cup Mount:
http://www.amazon.com/gp/product/B002K8Q0EU/ref=oh_details_o00_s00_i00
2 Heavy Duty 25-ft RCA Cables (for trailer):
http://www.amazon.com/gp/product/B0033SH9WI/ref=oh_details_o05_s00_i00
1 Heavy Duty 50-ft RCA Cable (for trailer's rear cam)
http://www.amazon.com/gp/product/B0033SH9Y6/ref=oh_details_o05_s00_i04
2 Lighter Duty 25-ft RCA Cables (for truck):
http://www.amazon.com/gp/product/B0002GWRXK/ref=oh_details_o05_s00_i03
100 ft of 1/2" Split Loom Tubing:
http://www.amazon.com/gp/product/B0017686ZC/ref=oh_details_o05_s03_i00
From Lowes:
100' 14-guage wire (black)
100' 14-guage wire (white)
5 big rolls of electrical tape for connections and wrapping the split loom
Various steel rods, tubes, flats, and angle iron for making the brackets
Worm gear clamps to hold a couple of the cameras to their bracket
Black and white spray paint
From my garage
4 PVC connectors (1" couplers)
1 PVC connector (1" T)
3' (give or take) of 1" PVC pipe
Silicone to secure the cameras in place
PVC primer and glue to make the rear-view bracket
C-clamp for the rear-view bracket
Tools Used
Drill (drilling the plastic in the tail gate handle)
Dremmel (making the tail gate hole oblong so the camera could be angled down
Saw (cutting the various metal pieces)
Welder (welding the brackets toghether and in place)
Angle Grinder
Wire cutters/strippers for making all of the connections
Various other common household tools (screwdrivers, utility knife, etc)