I went out today to give it a shot, and realised the ICC's chassis was slightly warped, and so it hadnt seated properly on the locators (just about the bolt holes), I popped it back, screwed it in, and when I plugged the battery in and turned her over, no luck, same issue.
I proceeded to remove the ICC for the 4th time and then realised, as I had removed the CD player, there was no connection to that main white plug, as it is mounted to the back of the CD player, I removed the BCM from the rest of the unit and put it back in as a storm front was comming and my windows were slightly down (it was 36 degrees), and checked again, still the same issue with only the BCM in
Now im stumped, why would the cluster, and AC not work when the CD player is detatched, I get the headunit not displaying as it only displays audio features, but the BCM has a direct connection to the car, and to the headunit mind you (as well as a small module on top of the aircon vents which im still unsure of its purpose)
Point been, my car is displaying the exact issues described here, but is missing the key culprit of the plug
So my last ditch effort will be to reinstall the CD player and radio unit (once I figure out how to remove the last two CDs) and hope that it doesnt wreck itself (as the CD player has sheered a cog and subsequently seized entirly after I manually ejected 4 of them) and hope that this somehow resolves the issue? but I dont see how it will, theres companys that repair the ICC's which recommend removing the BCM and putting it back into the car while they work, so I will ask them if this issue comes along with having no ICC.