I use the 2 condcutor (mono) plugs and the three conductor (stereo) jacks on my cameras. Two of the connections get shorted together when you plug it in, so I connect the shutter and the focus wires to these. Since the two don't get shorted together unless the plus is in I can still use the camera for normal picture taking. To make the connector fit inside the camera i cut off the tripod mount with my dremel tool and put the jack there ( with a little help from JB Weld). If you take your time and do a neat job you can't even tell that camera has been modified.