I was thinking about an idea instead of suction cups, esp for people who mount their detectors high.
Disclaimer: if it does not work don't blame me lol
1. Take off the suction cups off the bracket.
2. Get some industrial velcro, and place the strips on the bracket and other half on the place where you typically keep your detector on the windshield. (of course there will be a small strip still on the windshield when you remove the detector)