Ok, I couldn't STAND having no tunes in my car so I took the plunge and went ahead with the install! I didn't get as far as installing the amp as well so I wired the speakers back up to the Kenwood for now. This means that the Empeg's effectively working purely as a flashy-light box for the Kenwood at the moment but the good thing is all my hard work and careful planning has meant that the impossible has been done and the centre console fitted perfectly! What should have been a really hard job took a little over 2 hours with an absolute minimum of fuss. I had to remove 1 metal bar but apart from that everything went exactly as planned. I'm so chuffed!
WooHoo!