I want to add a set of additional blind spot warning lights

I am blind in my left eye, and unless I turn to see it, I can't see the Blind-Spot warning light on the outside left side rear view mirror. I want to add a set of additional blind spot warning lights (to duplicate both the right and left warning lights) on the dash above the speedometer and tachometer. I need for find a place in the vehicles wiring where I can tap into the correct wires to drive the additional lights I want to add. I am an electrical engineer, so if I need to make an interface circuit to prevent drawing too much current from the wire, I can do that. I just needs to be able to get to the right wires to sense the ON-OFF of the voltage that drives the Blind Spot Warning Lights. Any help will be appreciated.