I bought an amp/sub hook up kit that plugs into the stock headunit about a year and a half ago. Got it off ebay, but same seller was selling them here on SL - not sure of the screen name, but paperwork and CD that came with the kit say 'Nor Cal Scions'. I searched ebay, SL, and googled it too, but can't find anything. Anyone know if these are still available? Thanks.