The ap is compatible with: HDS Gen-2 non touch, HDS Gen-2 Touch, Gen-3 and Carbon. It's not compatible with the Elite Ti series. The Ti can control a Xi5 but not the ap
Because Lowrance & Simrad are from the same familiy it's also compatible with Simrad EVO-2 & EVO-3 and with the Go series. With the GO series you can't control a Xi5 but you can use it with the Hydraulic ap; also Lowrance also have the same ap for a cable steer steering.