Hi Guys, Following the instructions on this forum, I managed to add rear speakers to my Fox today! A few notes for those undertaking this themselves: 1. 17cm Pioneer speakers seem to fit fine, and there is a 'lookup' utility on the pioneer website. 2. Taking out the rear panelling is easiest with the bech seat slid all the way forward, and the backs down with boot open. 3. The wiring for the speakers from the head unit to the speaker 'bay' are already in place, and you just need to wire your speakers to these. (4. But they use a funny connector which I ignored and stripped away) 5. Took me (and a friend) about 2 hours to do the first side (don't laugh) but only 20mins to do the second side once it was all worked out. 6. Now the stereo has true f/b fader as well as l/r balance. I hope this helps, and thanks to all who posted advice on this topic. Ben