This parts-list page (WIRING HARNESS (AN650A L2 E28)) contains the most products with sixty-two listed parts.
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.
The Suzuki AN650A BURGMAN 2012 (L2) USA (E03) has eighty-five Other parts fiches.