You'll have to pay £20 to get tech info from ffoc now.
Here's my Focus bulkhead:
Looking at the photo, top left hole has a multipin connector through it and the fuse box is behind the glovebox in front of that connector.
There's enough room to drill a new hole but WATCH OUT FOR THE CABLES when drilling.
The other way is top right where the ECU wiring comes through, its a big grommet but is the wrong side for the battery.
.Top centre hole has a/c pipes through and is behind the heater.
Centre left is heater, centre right is steering.
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