OK I don't think modding the OEM screen just for the sake of a rear view camera is worth the £'s, not when head units with all the extra things like DVD, can be installed with less trouble.
Is there a way that extra gauges (things like the Turbo boost, oil pressure, water temp etc) could be mounted in to the screen holder, i.e. remove the screen and build in a set of gauges. Leaving the interior of the car looking fairly standard and pop open the screen when I want to see the gauges?
Would this just be a nightmare to do, as I know the UK very well having Sat Nav isn't that important.
Hope this makes sense. Oh and does anyone recomend any gauges to use.