http://forums.bistudio.com/showthread.php?174780-Texturing-the-Civi-s-Box-truck
The box of the "C_Van_01_box_F" is not modify able.
Its the texture \A3\soft_f_gamma\van_01\Data\van_01_adds_co.paa but its never used in config.bin.
BI could you please change it, to a hiddenSelectionsTextures or something?