To discover exactly which parts you require use the on-line schematic exploded diagram - it will even give you some idea of where and how to fit those new parts.
This parts-list page (TRUNK BOX (1)) contains the most products with eighty-one listed parts.
Access seventy-nine schematic parts-list fiches for GL1500A GOLDWING ASPENCADE 1991 (M) AUSTRALIA / KPH.