No wire hacking at all!!!!!!! You take out the stock bulbs, and route the electroluminescent gauge wires through these holes so NO drilling. i will say this, the little lip that goes around each gauge face, where the wires come from the gauge, you have to bend this a SLIGHT bit so as to keep the gauge flat.
The only wire you have to splice into is the wire that turns the dash lights on... And to find a ground for the converterbox, the converter box is relativly small like a cubic inch and fits easily behind the dash anywhere, all the gauges come with about 6 inches of wireing and connectors that connect to the supplied harness... They also glow green if thats what you prefer. lol im not saying sticky tack would work, but i would imagine that it would. glue would definitly hurt the stock gauges and im sure mine are scwrewed.......but im 19 and stupid i guess lol.. Id imagine double sided tape would also work. IF you wire them into headlight wire make sure your stock brightness knob is allways on the brightest so you dont ruin the box ( these come with full intstalation instructions :yup: