I got a set of fender Original pickups for my fender jazz. They seem fine except they came with two peices of copper with wire soldered to it and foam on one side. I'm guessing its for shielding purposes. What should i solder the copper pieces to? Should the foam side be down, or the copper side down (which side is touching the pickup)? And do i need to do any out of the ordinary soldering to make them work? Please help me out here i have a gig this weekend on friday night, talk about under the gun. Thanks!!