installation is complete of the i60. Went overall pretty good. I avoided running wire up to helm by adding a ITC-5 transducer converter on back of bulkhead aft of rear cabin bed. Removed the speed and depth transducers wires from st 60+ units and pulled the down to converter below. So speed, depth, and wind wire are all down below deck now. This allowed me add a sea talk ng backbone from helm down below to a 3 port junction and then to nav table area (using conduit from aft above holding tank to nav table). Doing this requires a I70 in the system to allow calibration of everything, which was a nice bonus since I added it above companionway. This allow speed, depth, wind info, ais, much other data viewable to others in cockpit or myself when the boat is on auto pilot and I stand under dodger to keep warm or dry. I ran the sea talk spur cable from above companionway down to behind nav table and tied it into backbone there. This allowed me to run all wire without pulling any headliner by carefully routing wire in headliner above head, down wall, and into nav table (via removing vent trim tube as junction point)
The only other task was getting wind wire to top of mast. From nav table I went out bottom of cabinet into chase behind and along seat cushion, under front cabin bulk head, up wall between bulk head and front cabin closet, across head liner to cover by compression post. I cut wind wire and made end to terminal strip. I then hoisted someone to top of mast and mounted wind vane, tied wire to messenger line in hole with VHF wire, and pulled it down mast conduit, then out bottom of mast and into deck to tie in to terminal strip in head liner.
Power up and everything worked great except the speed through water did not show up on i70, or st 60+. I trouble shot everything with raymarine, and we could not figure it out. Bought a new st800 Airmar transducer and it worked like magic. This was strange because to old one worked fine when pulled back into old st 60+ but would not read when plugged into ITC-5.
Whole process was time consuming but into end it works great, I love the i70 addition, and I now know how everything is wired and ran to work on things down the road.