Well, I think you never read the memories of Heinz Guderian...he was fascinated by wood, and did not like the interior of the bed of their trucks were painted. This is just one example. Them, the painting was not a fixwd rule. This is a fact.
The power source for the radios are clearly beside them, so, on the tables.
About the tarpulin, I did not put the tarp by my own choice, but is a good idea attach a tarp on one side of the bed. So...
Sorry, my english is very bad.
I appreciate your comments
