Head unit instalation

Hi all,

Bought a new head unit and all necessary wiring for the steering wheel controls, dash display etc etc; removed the standard unit and there are only two wires!!! Am I right in assuming all of the others are tucked in behind the centre console (the harness I need to get to)? Was hoping it was going to be a quick swap over, but am beginning to think differently now lol. Does the whole console need to come out to get to the wiring or am I missing something?

Many thanks,

Ash