[CA] "No Control Head" error message

[mikeroberts00]

Hello, I am installing a new P70Rs in place of my ST6002 autopilot control head. I recently installed an Axiom 12, FLIR M232, Ray60 VHF, and Vessel View 502. I get the error message "No Control Head" on the P70Rs control head. Its very intermittent, but happens about every 10-30 seconds. It seems like I have a loose connection but I'v tightened every connection and shook the cables vs leaving them perfectly still and same result. Ever few seconds alarms go off and get the error message. Any ideas?


Here's how I have it connected:

The older ST6002 control head had 2 oval sea talk connections: I have both to a D244 block. The 3rd oval sea talk connection goes to a yellow port on the Sea Talk NG converter. The white port goes to the new P70Rs, the blue goes to an open blue port on my current Sea Talk NG converter (from the axiom and VHF radio).

Here's what I've already tried:

New control head. (Tech support recommended, but it did not fix the problem)
Trying a new white cable to control head.
Eliminating Vessel view from NMEA 2000.

Please help. Thanks so much of your time.
-Mike