Didn't work for me - I think at some point (since I bought mine!) Sena reworked the 20 mount a bit. The tab that secures the speaker port is completely different than mine, but the bigger issue is that the top connector tab that connects the adhesive mount to the actual device mount is also different - it has a higher profile and therefore holds up. 20 self from blocking to base. I tried getting the dremel to the tab to remove some of that extra height but to no avail.
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