Where to mount air compressor on 2011 Patrol

Hello all .... I am thinking about mounting a air compressor in my 2011 Patrol, The problems I am facing is Dual Battery takes up one area and the ABS system takes up the other place where you could have put one in earlier model. Under the front passenger seat is another location however there is a heating duct under there.

My question is has any one fitted a on boards air compressor to a 2011 or 2012 Patrol and where have they fitted it.

Thanks in advance for your thoughts