Well well well...
I took a good look at the earth connection for the battery this morning and the cable itself looks fantastic (since I made it myself at work...) but I didn't change the bolt to the chassis and that sure was dodgy. Got a new one, cleaned up the threaded hole in the chassis and tried again. Hey presto, we've got power!
Of course a new problem rose - the alarm went off and I just can't stop it.
Locking or unlocking with the fob doesn't work at all (door locks don't move), key in door made no difference and when trying the ignition, the dash does light up but no start and the horns won't shut up.
Split the fob and measured the battery without removing it, 2.89V. Low?
I'm really frightened about the fob losing its magic connection with the car since I only have one fob and I do not have the EKA key code.
This might be covered in the manual, but since the car is imported from Holland the manual is in Dutch and.. yeah.
Well well well...