A grommet is attached between a body panel and a trunk lid at a location spaced from a hinge structure that movably supports the trunk lid. The grommet forms a wiring passageway between an opening in the body panel and an opening in the trunk lid. The grommet includes a body mounting end, a closure panel mounting end, a first flexible section, a second flexible section and a middle flexible section. The first flexible section extends from the body mounting end and the second flexible section extends from the closure panel mounting end. The middle flexible section extends between the first and second flexible sections in a free floating configuration with respect to the hinge structure, with the first and second flexible sections having a more bendable configuration than the middle flexible section.