My Spector ns2000q5 pops with the slightest movement of the cord and no amount of contact spray will fix it so I think I have to repalce the output jack. The problem, however, is that I'm a little fuzzy on what kind of jack to get. Currently, it has a 3 conductor jack with one lead going to the negative battery terminal, and the other 2 going to the preamp. Is this just a stereo jack with the middle contact going to battery ground? I know the third lead turns the battery on/off, but am not sure if its some kind of special switch or just shorts something... Anybody know common configurations?