If gonna get a auto dimming mirror, get the gentex GENK51with the home link. I bought one that wasnt gentex and it would vibrate when you drive. I put the gentex in my 350z and it does not move at all.
Also check out this site, he is a well known member of this site, he did a review and install on the gentex mirror for the frontier.
www.reverendbiker.com
Hope this helps

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