I have had my IPhone 5 for one week and just installed it in a life proof case. After installing it in the case I started getting a loud feedback squeal while talking on the phone. There was no squeal when the phone was not in the case so I suspect the case is causing the reaction. I work in construction so this case is a must to keep the phone safe. Has anyone else had this issue or is there a solution so that my phone can remain in the case?