So I just got my brand new S60 on friday, Jul 31. Saturady and Sunday I pulled out the stock deck for my Alpine IVA-D300, Alpine Amp, and Alpine Type-S door speakers.

I have been reading around through the threads and heard that factory amps are located under the passenger seat, checked didn't see anything (that doesn't mean that it's not possibly there), but I was reading the window sticker early this week and saw that it has a 4x25W amp, anyone have any ideas where this would be? Or if that is just built into the head unit.

Oh I had the HU-650 i don't know if that will help anyone. I know that the 05-09 S60 are the same so I hope someone has some info.