A rear liftgate assembly with at least one rear lamp applique assembly and process for manufacturing same. The lamp applique assembly includes a rear lamp applique housing with at least one attachment surface for attaching to an outer panel of the liftgate assembly. A plurality of integrated snap attachment features are provided to connect the lamp applique assembly to the outer panel, thereby eliminating additional bonding and fasteners. A self-sealing wire harness connected accepts an integrated lamp connector, thereby eliminating the need for access openings, to further minimize water intrusion, and eliminate gaskets.