Pinout for connector that fits to factory QI wireless charger?

In the Electrical Wiring Diagram (more info), see connector I43, shown in the Wireless Charger System and Illumination pages of the System Circuit section.

I couldn’t recommend this. Notice how the rated current marked on the wireless charger is 1 A, and its power consumption (消耗電力) is only 12 W. Unlike the existing 12-volt power outlet on the car, which has a dedicated 15 A fuse, the wireless charger is served by the ECU-ACC (5 A) and ECU-DCC NO.2 (10 A) fuses, which also supply several other important loads, such as the main body ECU, certification ECU, network gateway ECU, and steering sensor. Toyota hasn’t published an electrical load analysis, so we don’t know how much current those other loads draw from the same circuits, and thus how much capacity might remain for an added outlet.