The PC680 arrived yesterday. I am waiting on the terminal hardware I ordered, figuring I could return it if I don't need it. Now that I have the unit, I wonder -- will the hardware be necessary, or will I be able hook it up as is, out-of-the-box? I am used to connecting additional devices -- electric vest, GPS, battery tender -- if that makes any difference. Sorry to clog the board with these sorts of dumb questions, but search is still down, plus it's a little weird to be planning with the bike a few hours away.