Hey, I have an unshielded MIM Fender Jazz bass, there isn't a terrible amount of noise, but there is some. Since I have no soldering abilities n'or do I have soldering equipment; what is the cheapest/easiest way to shield my bass? Is only shielding the pickguard (with some flat foil right under the pickguard) sufficient enough to reduce most noise? And does the foil have to be special foil? Or can it be just any aluminum foil?