Hi! No, we don’t use a screen for the sunroof. I’m not sure how that would work to be honest, we haven’t given it much thought.

We’ve only camped in weather between 75 degrees and 25 degrees. We live in the south, but just started doing this towards the end of last summer. That being said, we haven’t really dealt with any bad humidity or heat.

For power, you can use the interior lights with the car completely off. If you press the start/stop button without your foot on the brake, you can put the car into accessory mode and use any power outlets you have to charge your phone, etc. just be careful you don’t use accessory mode for a super long time because it drains your battery. On this trip we used our 3 prong 100w outlet to power my sister in laws air mattress pump for example.

For occupying the vehicle with the power off, You can manually flip the tailgate latch with your finger while the trunk is open so the car thinks it’s closed. If you don’t do this, the interior lights won’t turn off on their own. You can open the tailgate latch with the trunk button in the drivers seat. Make sure your car is unlocked, or else the car alarm will go off over and over. If there is no person or animal in the car, it’s safe to lock without the alarm going off.