When i play with my guitar, i always hear some little noise or hum. I just want to kill that hum. My guitar is Ibanez RG 270 series, and doesn't have shielding on it's grounding. Now its time to shield and kill those noize.. No shield on pick-up cavity and wiring cavity With aluminium foil, glue, and double side tape, shield them all.. of course, tremolo cavity and electronic cavity Don't forget to connect them all with grounding point.