They are a funny set up but handy all the same. I normally put 1L water bottles in there for a day trip so they kind of cool the water from the A/C blowing through the vents. Not sure it would be much good for wine as it is not that cold
The position of the Avalanche fire extinguisher is somewhat different but good thinking all the same and out of the way of the passengers leg. It mounts directly to the front of the passenger seat and moves with it back and forward. I will grab a photo tonight. You can buy the mounting kit from Holden. I am copying this set up for my GTS when I remount the fire extinguisher as atm it is a dodgy set up. The one in the boot is not much good if i am stuck in the car unable to open the door with a dash fire or something.