I have been using my triumph for almost a month now yesterday when i was playing with the fm transmitter/charge i bought the griffin itrip after hooking the phone up inside my car i noticed it got hot and today when i was driving i plugged it and got hot also. Is this normal ? Should i worry about anything? It seems like its the bottom back of the phone that gets hot. I downloaded temp monitor app and right now my phone is charging and it says its at 36 Celcius.