Yes they will fit on the normal brackets - on the screen
To remove the existing bracket - i found it easier to remove the mirror from the bracket - ball joing - just pull down....Then turn the bracket 90 degrees (either way) and its off!
I guess the switching thing would work - as its in effect a switch - they could be installed to the std one if you could be bothered to wire the power down the pillar to a switch and back again.....
The 6 wires in total include the rain sensor - I think youve double posted - and ive replied to your other post[^]
Telling you which wires you need - Foxy posted me the VW wiring spec on the mirror section.
One wire requires the reverse light switch - to clear the tint - if someone knows where this is - at the front of the car - pls advise - cheers
Hope this helps[

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