; Nissan Elgrand E51 Original radio options - InCarTec

There are multiple original radio options in the Nissan Elgrand E51, which option is the original fitted system?

NIS-EL1 - Integrated Hazard Switch NIS-EL1 - Integrated Hazard Switch
NIS-EL2 - Single DIN Slot NIS-EL2 - Single DIN Slot
NIS-EL3 - Separate Hazard Switch (Standard Audio) NIS-EL3 - Separate Hazard Switch (Standard Audio)
NIS-EL4 - Separate Hazard Switch (BOSE Audio) NIS-EL4 - Separate Hazard Switch (BOSE Audio)
NIS-EL5 - Separate Hazard Switch (Theatre Sound) NIS-EL5 - Separate Hazard Switch (Theatre Sound)
NIS-EL6 - CarWings System NIS-EL6 - CarWings System