Wiring switch indicator LED's when using DCS AIU

I would like to make a turnout switch position indicator board. All I want to do is be able to look at the board and know based on which led light is on, what position a switch that I may not be able to see, is currently in. I don't need to be able to press a button and actually actuate the switch. I use the DCS app and/or handheld remote to actuate the turnout switches via the AIU.

So how do I go about wiring this? I attached a couple diagrams I have found online as well as my schematic of how I think it should go, and I am wondering if I am on the right track (no pun intended) to learning how to do this.

I have wired many relays on my layout for various actions, however, I know since actuating a switch is a momentary on power event, I am trying to figure out how to hook up a latching relay to keep the led light on after the momentary power event occurs. It may be important to know that my switches are all powered by accessory power from a dedicated Z1000 transformer. My other question is how to tap into the wires coming out of the AIU and going to the turnout switches. Can I cut the wire in the middle and then basically then split the signal from the AIU to go to both the relay and the switch machines? Thanks all for your help!