I have a pair of BG RD50's that I am building a baffle for. They were working fine, but after using one of them to transfer the rivet location to the wood baffle for mounting them, it has no output. Now that I have done it - used a punch to tap on the rivets to mark the wood behind the them - not smart. I fear that I have loosened the connections to the aluminum ribbon. It measures none to very high resistance, intermittently. There are endcap covers at each end that look like they are riveted in place for access to the connections. Does anyone have experience or direction on a fix, for this self-inflicted problem? Thanks.