Retro fit of Sony NV - U92TC Sat Nav to Freelander 2

Retro fit of Sony NV - U92TC Sat Nav to Freelander 2 Hi

Could anyone please help me with how to fit a Sony sat nav in the cubby hole of my Freelander 2 2007.

I have read several posts and watched videos but can anyone talk me through how to hard wire it please?

Should I hard wire to the Auxiliary power socket at the back of the centre console?

How should I wire it up to the speakers on the radio?

Also where could I get a surround for the sat nav so that it looks neat?

Thanks