A storage arrangement for lines from a tractor truck includes a housing member secured external to a cab of the truck, a receiver connected to the housing and configured to couple to a select one of an electrical line and first and second pneumatic lines, and a control arrangement coupled to the receiver such that upon coupling of one of the lines with the first receiver the control arrangement activates a status indicator that provides the operator with an indication of a coupling status of the select one of the electrical line, the first pneumatic line and the second pneumatic line with the storage arrangement.