I have tested all my speakers and the head unit they work fine except I can not get those two small back speakers to kick on I can unplug the 6x9" plug in those small ones and they will work or unplug the small ones and plug in the six by nines but not all four together I am using the connectors for the 6x9's to test the small ones now I have swapped all speakers out with bose from a 2000 GTP but this problem existed before I did that thats why I swapped the speakers I figured something was blown so I am guessing it has to be in the wiring and NO wiring diagram I have found shows the 4 rear speakers just those two.The head unit is a JVC KD-R900. Anyone have any ideas or a diagram that shows all the speakers OR can I just splice into the wires for the 6x('s or will that blow something? Thanks