Around the first facelift in ‘09, the Full Map (FM) option was released. This gave you the Sat Nav with accompanying touch screen and reversing camera but with out the Mark Levinson system. I think these systems had the 13 speaker Pioneer stereo.
Originally the Multi Media System (MM) with the 14 speaker Mark Levinson system was available on all grades at launch as an option, which is why your non SE-L has it.
Frustratingly the MM system was dropped for the 11 MY facelift, meaning that the FM system was the best system that could be fitted to all trims bar the ISF, which was still fitted with MM system as standard.