My previous car had a 2 DIN slot dash, but I only used the empeg in it, though with tuner module - mainly used to receive RDS Traffic Announcements...

I'm currently in the process of installation in my new car (Peugeot 206, probably small enough to park in your rear seat ), and it'll also be empeg+tuner only (it's a one DIN slot dash). With a bit of work one could probably move the stock multipurpose display down to just above the ashtray, and stuff another DIN unit in the space vacated...

/Michael