I have a Whelen Dash King Dash light: http://galls.com/style.html?assort=g...DL033&cat=2704

I bought it from a fellow firefighter in my dept and I am not sure how to stick it to my windshield. Right now I have like it on the window by Velcro but it is not holding up too well. It's not strong enough to hold the light tightly. . I can't seem to find like some Double sided adhesive squares anywhere. Does anyone have any idea what I can do?