yeah thats a good one, better check that the 24V fuses are all good as well huh
If youve got a multimeter about id just double check that the sockets in the connector block are actually located correctly with regards to the headunit, the head unit will have a sticker on it probably saying what each pin is for. Identify the permanent 12v and the switched live pins, and then look at the corresponding sockets on the connector. Check between the ground socket and the permanent live socket that youve got 12V all the time and that you get 12V between the switched and ground when you turn the ignition on.
Just looking at the wiring diagram in the Haynes manual (for a non-sport, I would of thought its the same though) that the permanent live in this case is Red, the switched is Yellow, which is backwards to how I normally find it, but thats why they build the connector looms with the breaks.
If the permanent is there and the switched is there, going to the right pins it should work.
All the best,
Pete