I own a V70 II, year 2001, in which the automatically blinding internal mirror is defective. The automatic does not work anymore, the liquid has run out. In the mirror housing there is still a microphone for the built-in phone. Now I have got another mirror. However, a manual, also with microphone. I have already activated the search, but found no answer to the following questions: Can I use the manual mirror instead of the automatic one uen, if I remodel the board on the back of the mirror glass accordingly? Does anyone have experience with switching from automatically to manually? Are there possibly software problems? Thanks for answers!