Hot Rods Lit Fan Toggle Switch

Hi, I want an LED-lit toggle switch to override the temp sensor to the relay (just in case)-can anyone point me to a toggle switch (make, number or...how to wire?) that does this:
1) LED lights up when temp sensor on motor kicks the fan on (I’ve got a ground between the relay (#85 in my Rebel 9+3) and my current 4-post, SPST switch... AND:
2) LED lights up when I flip the switch to manually override the sensor signal.... In other words I want that LED lit whenever the fan is “on” regardless if it’s in auto

 

Refer to your previous post from this morning. HRP

https://www.jalopyjournal.com/forum/threads/lit-fan-toggle-switch.1147994/