No offence:-)
I'd *not* be removing the driver-side rear fog lamp in order to achieve twin reverse lamps; the car was ADR complianced
with the rear fog function, even though, to date, that function remains ADR optional, it *can* still lead to a technical defect under Trade Compliance, although probability is low (not enough smart coppers or agency compliance staffers around).
Atm the Vehicle Certification Board are studying the possibility mandating the rear fog lght function,- for on-road safety. See link.
A cars regular 5watt taillights, what you are left with after this mod, are utterly worthless in even 3mls of roadwater on a freeway in daylight rain, here, and in similar conditions causing reduced visibility (fog, dust, bushfire smoke etc)- having the rear fog light,- IS a car and life saver.
Besides, do we spend that much time going backwards that we need an extra reverse leight? Adding an extra reverse light does not in actuality double the lumination in photometric terms.
I'd be keeping the rear fog function, but you might like to add a separate dedicated, relayed and rear-mounted working lamp instead (12v/55watt)!
www.boostcruising.com/forums/index.php?showtopic=450922