Obviously my electrical knowledge is letting me down here.

I'm wiring up a small fan motor to blow more cool air into the engine compartment. I needed a 12V source to tap off. The Daytime Running Light resistor is right there, so I thought that would be a good thing to use.

I've tapped off both wires and with respect to ground I get 0V on one and about 3V on the other. The daytime running lights do work and are supposed to get about 9V from what I've read. That resistor drops the voltage. I thought that if I tap into the correct wire I should get the full 12V. Apparently not.

What am I missing? I was wondering about going across both wires but don't want to mess up whatever system the DRL's use by introducing an unknown resistance (the small 12V cooling motor).

Screenshot 2023-08-04 at 5.56.48 PM.jpg

And when they say "caution high temp" on that, they aren't kidding....it gets HOT.

Rick