The truck accessory pack has been updated on Steam. It now includes a custom MP4 painted sunshield and a fixed version of the MP4 DLC sunshield.
For some reason SCS did not line up the templates for the DLC sunshields properly so if you have a patterned visor that lines up with the roof, then it will only work on either the EU or UK variant (depending on which you skinned for) and the other will be misaligned.
My version replaces the EU sunshield so the template is centre aligned.