adding a charging fault light

If on a typical alternator , the sense wire is needed with the resistance of a light bulb to get the regulator to start charging, couldent you run a 14 ga wire with a 470 ohm 5 or 10 W resistor to make the alternator think its a light bulb, , then if you wanted an LED indicator light, just wire it in parallel to the resistor with the negative side of the LED going towards the alternator. Since they only light in one direction polarity wise wouldent a setup like this work. I mean some of y'all are talking about diodes. Rectifiers, relays etc to make the light come on and go out. Do you think maybe your over thinking it a bit, or am i just under thinking it.

Matt