1977-80 Pontiac Firebird Classic Update- Power Window/Lock Add-On Kit

This add-on provides connectors and wiring to supply power from a Classic Update dash to individual power lock and window harnesses and switches, along with a replacement switch and relay connection. Designed specifically for use with a 1977-80 Firebird Classic Update, AAW part 510683 or 510689. For use with original, or original-replacement factory door wiring only.