Help / Confused/Garmin

[Eagle 1]

Was given a couple of Garmin units that have little to no time on them . I need to order parts to set up but am a little confused . Unit #1 is a striker plus9sv . It needs a transducer . The power cord is here but I thought a XDCR was the transducer . If so what plugs into the sidevu slot ? Have the mounting bracket but need knobs . Are all Garmin knobs the same . The other unit is a 93sv .I intend to use this unit for panoptix only . It needs a power cord (missing )as I understand to be a stand alone with the panoptix cable . I am assuming all I need is a power cable . correct ? pictures of units and backs . unit #1 unit #2