NO air vents work, in fact, the double left hand side vent is being removed and having 3 gauges fitted in the hole, the right hand side vent will prolly be removed to fit a nice starter panel like this.....
http://cgi.ebay.co.uk/ws/eBayISAPI.d...MEWA:IT&ih=001
or this....
http://cgi.ebay.co.uk/ws/eBayISAPI.d...MEWA:IT&ih=019