I would try the
<span style='text-decoration: underline'>Scosche MAGDGPS MagicMOUNT - Magnetic Mount for GPS</span>. I used that one, which has an adhesive peel and stick surface, works very well. I also used the window suction cup, and even the vent mounts.
<b>Below</b> is the link to it on walmart. If the link won't work, search the underlined name.
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<a href='
https://goo.gl/1XUYFD' target='_blank' class='externalLink' rel='nofollow'>
https://goo.gl/1XUYFD</a>