Well, I got bold and accessed my engine bay. It's not nearly as easy as previous models, but if you're interested, here goes.
First, put your top in the service position. If you don't know how to do that, it's a little more involved than previous models too, and I'll go over that after this.
Remove the carpeted liner from the back of the cabin. You will need this off to reach the top 4 screws on the cover.
Remove the 2 speaker housings Torx T30. All screws for this are T30's. Need to remove these to get access to outside 2 screws.
Pull the liner from the slot under the back of the roll bar.
Move top a little forward, so there is enough room under the window to slide out the liner and insulation.
From inside the convertible top bay, remove two black plastic caps on left and right corners of liner. Torx t30 to remove screws.
Pull liner out of rubber moulding, and pull it out. Then pull out insulation.
You now have access to the engine bay cover. Remove 8 screws you can access from the bay. Go inside the cabin and remove the top 4 screws. All torx t30.
To put it back, first put all 12 screws back in the cover.
Push insulation back in place. You might have noticed a length of square gray foam came out with this. I'll get to that later.
Push the liner as far as you can under the window. You won't be able to get it all the way in.
Put the top back in the service position.
Go into the cabin reach over the roll bar and pull the liner toward you as far as you can.
Tuck the end of the liner into the slot under the roll bar.
Go back into the bay and tuck the liner under the rubber molding. Strong fingers help here.
Replace the 2 black plastic caps on the corners.
Go into the cabin, and push that piece of foam I mentioned into the space under the roll bar.
Replace the speaker housings and the carpeted liner.
Take top out of service position and replace windstop screens.
You're done! Congratulate yourself, have a rest and a drink!
Putting top in service position.
Open the top until there is about 100 mm between the edge of the windshield and the first top bow.
Remove the windstop screens behind the headrests. Reach through the openings and feel for a wire cable on each side. Slide your hand to the bottom of these cables
and you'll feel a small ball. Pull these to the center of the car to disconnect them. Try to remember where they were for re-connection.
Now move the top until there is about 470 mm between the windshield and the top bow.
Open the rear lid, pull the bottom bow of the top that's under the back window past the rubber moulding. You'll need some strong fingers for this.
There is a strap clipped under this bow. unclip it.
Pull the bottom bow, along with the window up until this strap can be hooked on the edge or the first top bow.
To release from service position, release the strap, re-clip it under the bottom bow, and push this bow down past the moulding.
Put the top in the first position, above.
Reach through the roll bar openings and pop the cable balls back on their attachments. You may have to feel around for a while to find these attachments.
Install windstop inserts and close the top.
From inside the cabin, reach over the roll bar, grab the liner and pull it toward you.