You are welcome @cahlen!

The plastic shielding around the wires would help protect them from abrasion, the elements and especially ultraviolet from the sun which will degrade the insulation on them. You could fit both the wires into one piece of shielding also which would consolidate them.

The shielding that I am thinking of is the flexible kind that is generally called 'heat shielding' and can be purchased at pretty much any auto parts store. It may be worthwhile to shop around and find some that is specifically UV resistant.