The heating system was never altered at all when the commercial versions were built, so the ducting to the rear passenger area is still in place and functional. Its a bit pointless on commercials though as instead of heating rear passengers feet, it just heats the wee space behind the front seats under the load floor.
Slide the front seats as far forward as they go and tip them forwards - have a look underneath and you will see the ducts. Plug these up with something.....duct tape is good ... I found this noticeably improved airflow to the front footwells.
Slide the front seats as far forward as they go and tip them forwards - have a look underneath and you will see the ducts. Plug these up with something.....duct tape is good ... I found this noticeably improved airflow to the front footwells.