Yes and no.
Not that specific adapter, because my Thinkware runs on 12v and needs both constant and switched for parking mode.
I used the actual factory adapter that Toyota sells for installing their own dashcam in the Venza/Highlander.
It worked on my Avalon as well as the Venza.

 

Thanks for posting!

Just to confirm, this kit allows the camera to be operated while in off and parked?
This kit simplifies, instead of hardwiring into the fuse box, it intercepts the rearview mirror component instead?

 

Nice! I may buy this.

 

The two large "bundles" are 5a fuses, so the camera (or USB power supply) can be connected directly to the 12v leads on the white connector.
I cut off the white connector and wired the Thinkware power lead directly to it.