sideview mirror switch
 

My 2014 SQ5 sideview mirrors are acting funky. i replaced the battery that corrected the issue for a few weeks (it was 7.5 yrs old) but now they fold/unfold intermittently again. Anyone replace their switch in the driver's (US) door - I'm wondering about going OEM ($21) vs going Audi part ($81). Thx.