No charge, and no problem.
i had the same problem with my Telecaster after i had some customisation work done on it. The “functional(?) alcoholic” who did the work neglected to ground the new bridge. i knew there was a problem just as soon as the noise went away as i touched the strings. (My body became the new ground point. Not a good position to be in if you’re concerned about your safety.)
As for the wireless connection on the OP’s first post, that can also cause problems if there is an impedance mismatch. i’ve actually heard police and fire department communications come over the wireless transmitter to a guitar and wireless microphones. It is an issue to consider.