I have an X-135 and an ep-35 temp sencer and it has not worked since i got boat in o6 and after many trips back to dealer they have not fixed it and now i find out the temp is not even hooked up at all what do i need for this. I guess the dealer has no clue so i will do it myself. I think all i need to do is connect to center plug on finder but do i need to power this cable and what size omns 60 or 120 goes on the open end? thanks for any help. I have been on lowrance site but still a little confused i do not see just a network cable :-[