The correct way to customize the unused buttons in your car. : r/AwesomeCarMods
Fill in the blanks! Ideas to fill up blank / dummy buttons in cars - Team-BHP
Drivers are just realizing 'blank' buttons still exist in cars - they're hard to spot but a constant 'negative' reminder | The US Sun
Anyone do anything fun with all the blank buttons on their M3? - BMW M3 Forum (E90 E92)
Uses for blank buttons - ClubLexus - Lexus Forum Discussion
is it possible to use these three blank buttons for anything? or possibly remove them to hook up like a switch or not for something like subs? : r/GolfGTI
Drivers are just realizing 'blank' buttons still exist in cars - they're hard to spot but a constant 'negative' reminder | The US Sun