what evc is it?
the older ones would fit in the centre console if you dont mind doing a wee bit work. as for getting the wiring harness in, take off the drivers front wheel and remove the splash gaitor - you will be able to see a large rubber grommet that can also be accessed just above the pedals on the drivers floor. put the seat as far back as it goes, if you get a torch you can see it, its a bit awkward and means lying on the footwell and looking up behind the dash. TBH once you find the grommet and poke a hole through it should only take you 2mins to feed the cable in.