so i have heard this noise like something is loose on my neck pickup. its a rattling but i can hear it through my amp too. when i hit the open D A E strings together is when it rattles mostly but it sounds like its coming from under the E B strings. its an epi sg. about 2 1/2 years old. so does anyone know how to fix this without taking it to the shop. i dont want to just go at it because that might void the warranty so. is it a simple problem or is it going to need to go to a shop.