This is most definitely possible and doable. I had an '87 Vanagon with the center A/C duct. I bought a good sunroof with TWO latches that would be either side of the duct. This is the important part, because you can't reach a single center latch. I removed the ducting and cut the opening between the ribs just forward of the rear seat. Installed the sunroof and reinstalled the ducting and it worked perfectly. The place I bought it said it looked completely professional. The hardest part was cutting the opening with a small sabre saw. This was all about 15 years ago, so my memory is a bit hazy, but if you want more details, let me know.
Jerry
  ----- Original Message ----- 
  From: Mark Dorm 
  To: vanagon@GERRY.VANAGON.COM 
  Sent: Wednesday, November 27, 2002 8:56 PM
  Subject: Sunroof/Moonroof/Marine Hatch

  I've got a carat. Its got that ac duct running down the center of the ceiling. So can't put a moonroof there. Wish mine had a factory sunroof. I need ventilation when its parked, and I don't want to hire a security guard so I have to close the doors. 

  Is there anyway to have a small sunroof on the ceiling to the side of the ac duct? I've asked an installer and haven't gotten anywhere with it. Need information. What about marine hatches? Can something like this work? If you look at the air vents that are in the sides of the ceiling, you'll see that behind the air vent plastic (air flow adjuster/controler/thing) there is the metal which forms the roof. Okay, so what about a small vent there that allows heat to leave the interior of the vanagon? One that doesn't let the rain in.... 

  I hate sweltering

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