Ok so I got my new white faced gauges that I bought off ebay. They came in an APC box and APC sticker. Anyways the included instructions says do not run off the power from the factory dimmer knob as it can destroy or mess up the gauge glow. It also says do not remove the stock overlay. I want to do away with the dimmer knob that came with it (see pictures) and run it to my factory dimmer knob. Or at least run it to the headlight switch so that the gauge lights come on when I turn my headlights on. If any other pics are needed or info please ask. But I want to know 2 things 1. How to do away with the dimmer knob they sent and splice it into the factory lines, and if thats ok and will not mess anything up. (advice from someone who has done this with something similar would be helpful) I dont see the issue. Its still all coming from the same voltage and as long as I keep the converter box whats the issue? (not very electrical inclined here!) 2. Why do they say do not remove the factory overlay? (IE the plastic piece for the gauges!) Here is what I bought http://www.ebay.com/itm/1999-2004-FORD-MUSTANG-GT-V8-WHITE-FACE-INDIGLO-GLOW-GAUGES-150MPH-FOR-CLUSTER-/360478278648?pt=Motors_Car_Truck_Parts_Accessories&fits=Year:2002|Model:Mustang|Submodel:GT&hash=item53ee2e03f8&vxp=mtr In the pic you can see the power cords. the converter box, and the dimmer knob.