I recently purchased a nicely equipped 2001 280 DA. Has twin 4.3’s, the Koehler 5E generator, A/C, water heater, Vacuflish, Microwave, “etc, etc, etc.” (Old Timers will get that Yul reference.) The twin Alpha Ones have anodes, but I do not see the little Mercathode current wire box under the transom assemblies. There is an anode on both. Further, there is no visible Mercathode Controller I can see in the engine room. I was a little surprised because I thought most Mercruisers came with that system, especially the nicely equipped ones. However, I see the EIM box in the engine room has both port and starboard Mercathode systems labeled. Finally my question: Is this some type of Impressed current system I am not familiar with OR are the boat EIMs all set up for the system as an available option? I am doing a Transom Assembly change this winter and will install the system, if it not there.