Hema HN7 fitting into the GU

[Winnie]

you can only get two sizes as far as I know that is one Din and double Din.
By you saying a flip up lid I take it its a later model Patrol. single din is about 150mm x 50mm
I lot here have removed the Nissan OE set up in favour of the more user friendly units available
EG Bluetooth, GPS,CD,DVD, iPod am/fm drs. all in one

The Hema HN7 is a standalone unit made to be mounted to the windscreen like any other gps.