What I'm asking is, can I use the power from the shifter indicator lights to light LEDs?
If they are 12v, yes you can. I don't understand why 2 people have said it isn't possible. That would be the same thing as tapping into your running lights, dash lights, etc. If the shift console lights come on with the running lights you are just tapping into that system.
It is the same thing as tapping into the running lights to run fog lights.
You could run it so they come on every time the dash/console lights are on or you could use that wire to power the switch and switch them on and off when you want.
I am curious as to why those that said it can't work say that. To those that said it, please comment.
I guess, I would need to know exactly what you are meaning by shifter indicator lights. Do you have an auto? Do you mean the lights that come on when you turn the running lights on?