Hi All, I'm after some advice about fitting rear speakers in my 2000 1.4 vvti hatchback corolla. I'm fitting them on the back next to the parcel shelf. There is already a mount for the speakers but no speakers there. I screwed my own speakers into the mount and ran the wires behind the trim to the front. My stereo is a factory fitted unit with the radio and trip etc head unit on the top of the dash with a cassette player beneath the air ducts. I removed the air ducts to remove the head unit and attempted to attach the wires But I can't find where to attach the new wires! The wiring information i've got off the net says that i should have 12 wires coming out of the back but I have 15!! I'm wondering if there are already wires fitted but I just can't find them! Any advice on wiring colours for speakers would be much appreciated. PS I've added a pic if the connector into the headset, if its any help.