Just found out my car has the Super Live Sound System with the external amp in behind the glovebox. Sounds really good but have one question...

I know it's a really big long shot but I don't suppose there's any RCA outputs anywhere that I could connect another amp to for a sub. I took the sub out of my old car when I was selling it & was gonna put it into the 'Tezza but don't want to change the headunit if possible...

No RCAs, but there is a DIY guide out there somewhere that shows how you can pull apart the amp and solder some in...

It's an interesting system when you start to read up on it - IIRC the headunit and amp act more like one system rather than a headunit sending straight sound signals to the amp it has some other data going back and forth... Anyway, search these forums, it's probably here, failing that you ought to be able to pick it up though Google.