I am in the process of replacing my defective SPX30 autopilot with a new ACU400 autopilot. The old fluxgate compass was connected to the SPX30 via a 5 wire connection, while the EV-1 connects via Stng. While installing the new EV-1 heading sensor, I found a Stng "T" connector for the depth finder under the port settee, forward in the compartment almost at the bulkhead for the forward head. The "T" connector has 3 connections, 1 spur cable for the depth sounder, and 2 backbone cables. My question is why would Hunter have wired this with 2 backbone cables? I would think they would have run one backbone cable and put a blanking plug on the other connector. Both backbone cables run aft toward the navigation station where the autopilot and other electronics are located.
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