If nothing goes on these threads, it should not be a concern. I've never seen anything on these threads and I would be concerned that a "cover" might come off and interfere with the accessories, causing a problem. I wouldn't worry about it.
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2013 Audi TT RS (Tech Pkg, Sport Exhaust, Heated Seats, Sirius)
Retired--2007 Z4 M Coupe (Imola Red/Black, Premium Pkg, Heated Seats, XM, Bimmian stubby antenna, CDV delete, Apex EC-7--Anthracite, Goodyear F1 Asymetric 2.
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