Audi Optical Parking Sensors - Parking Switch options

This video shows the different options for the Front Optical and Front and Rear Optical Parking Sensors (aka Parking System Plus or Advanced Parking System) that we offer with either:
1. 'P' symbol printed on the parking Switch
or
2. With no symbol printed on the parking Switch

[@petru-alexandrudragusin7124]

I have a Q3 as well for which I will like to do the same retrofit. How much did the parts and the labor cost for the update in the video? Cheers!