Nikon 27002 GP-1 CA90 Accessory Cable for GP-1 Nikon warranty For Use with the Nikon GP-1 GPS Unit & Nikon D90 DSLRs and Others with an Accessory Terminal GP1-CA90 cable for connection to cameras with accessory terminals. Cable for connecting the GP-1 to a D90 or D5000. Comes supplied with the GP-1.