A storage arrangement for at least one line from a tractor truck to a trailer including at least one of an electrical line, a first pneumatic line and a second pneumatic line includes a housing member configured to be secured to the truck external to a cab of the truck, a first receiver connected to the housing and configured to couple to a select one of the electrical line, the first pneumatic line and the second pneumatic line, and an air pump positioned within the housing and pneumatically coupled to a pneumatically-driven assembly of the trailer.