Well, in the dash you have 2 connection's, one for power to the headunit, and one for the sound, the male end (the end coming FROM the car) only has 4 pins in it, there for, 2 per speaker, that means only 2 speakers (the fronts) are getting sound sent to them.
There are 4 other empty slots in this block, for another 2 speakers, (rears) so need to buy some speaker wire and a pack of pins.
The adapter wire from the head unit to the cars loom has the 8 pins in it, like it is supposed to, ready to give sound to 4 speakers, but the cars loom side only has 4, for 2 speakers, so need to wire it in my self, just wondering if halfords sell these pins?
Im pretty sure they do, just want someone to confirm for me.