I can tell you there is a gromit just on the left hand side of the pollen filter that will alow access to the cab from the engine bay if thats what your after.
Also, there is an earthing point on both sides of the rear of the vehicle behind the parcel shelf brackets. you need to get your head in and look up to see them properly. Or you could tap your own holes and use them instead.
can you be a bit more specific on which cables you need routs for dude?
hope that helps
