Power line tap availablke inside the reae mirror housing?

[SeattleBill]

Hi All,

I have a 2019 450RX, and I recently bought and installed a dashcam on the windshield and run the power cord to the cigaretter lighter to power it up. Does any one of you here know if there's an always-on power line inside the rear view mirror housing, where I can open it up and directly attach the dashcam power input wires to it, similar to many people power up their radar detectors through the power behind the mirror (if it has power to it)?

I can hook it up to the fuse box, but that will require running a long wire to the fuse box and may look not as tidy as just a short wire from the windshield to behind the rear view mirror. Also, I want to power the dashcam at all times including when the car is parked, so that it can record videos in case another car hit my car or if someone try to break-in, as the dashcam will automatically record if it detects vibration when parked, and the cigaretter lighter is powered off when the engine is shut off. This may also be the case for the power to the mirror, but just to see if this would be a viable option. Maybe using the fuse box is the only way if constant power is needed.

How easy it is to access the fuse box on the 450RX though, as I haven't tried to access it yet. 

Thanks for any comments and advice! 

Bill