L322 Retro-fit satnav/tv

[garioch43]

I have a 2002 L322 4.4HSE and would like to fit the satnav/tv option as comes standard in the Vogue.

There appears to we wiring in the rear load space for the satnav computer unit.

Will the vehicle have all the wiring in place necessary to fit the display unit, TV tuner etc?

garioch43