Thats how we are supposed to do it, to be fair... But I personally am not a huge fan of the wire on the Sierra rear quater glasses (nor the XR4 fixed 8lites) due to the metal U section in the trim's. Get snagged on this and it can be a complete pain in the ass!!!! Secondly, if you fuck it up, your gonna cut right through that plastic outer trim too.... Seen it done, owner was not impressed (wasn't me doing the removing I might add)