We don't have any new microphones for body mics and a couple of them are cracking over the system. There are a couple spots in the cable that cause it to crackle. Are there any suggestions on how to fix this within one night. will a cheap pen casing over the cable. also will gaft tape work over the connection to the body mic itself. others yet will only repond to touch and a tapping sound, but talking does nothing. besides getting new mics, what else could work? Thanks in advance!