Has anyone ever had problems finding Stereo wiring harness?im trying to find one for my Sony stereo with an iPhone port and Bluetooth but seem to be hitting a brick wall as usual.all as I seem to find is anything after a 2004 reg polo.the adapter that came with the stereo Doest match up at all got no power or sound coming from speakers so I need a different harness.my buddy owns a sound store and even he can't find one so again of anyone has any ideas please feel free to share thanks as always Matt