I just purchased a 2011 2 LT and have a weird question about the installation of an EZ Pass tag ( Im sure its called something different in other states but here in NY it is our automatic thuway toll payer tag). On the inside of the windshield there are several raised black bumps. I was just wondering if its ok to stick the tag on those bumps or do they serve some sort of function. Its a weird question but I wanted any insight before I stick it on cause they are a nightmare to get off. Thanks.