ive installed a killswitch (2-way toggle switch) to my guitar (a hohner strat copy), and its a bit... ####ed, it keeps on buzzing real loud whenever its turned "off". basically, i cut the ground wire and joined each part up with a 2nd wire leading to the switch. its wired all correctly in that way, but possibly i cut the wrong wire? i just want to know if ive made any errors anywhere and thats whats causing the problem