Important: Dirt, oil, and other contaminants can impede adhesion. Thoroughly clean the area using isopropyl alcohol and a razor blade, if necessary.
Important: The edge of the GPS antenna that fits against the headliner is slanted, so exact positioning at the headliner (1) must be determined before installing the GPS antenna. If unsure, test fit the GPS antenna to the headliner prior to removing the adhesive backing material.