it looks like the 998 came with an as sidb y cable. is this just to hook up gps or can i use this one for the through hull ducer?
Also would this mount be sufficient or do i need the biger one? RAM-111-U
Overall length: 5.6", 1.5" ball, 6.25"x2" plate, 2.5" base, holds up to 10 lbs
Thanks...too many questions from a newbie.