This was my first time installing an audio system in a car so I may have made an obvious mistake. The front plate rattles and I can't get it to stop. it seems to depend on the temperature. A friend told me to take small pieces of cardboard and place them in the loose spots until I can get it to stop. Once I do that, I can put pads in these spots and my issue will go away. The problem it that I can't get them to stop. The front plate seems to fit firmly, then the temperature changes and I get a rattle in a different spot. Does anyone have any suggestions for me? I'd appreciate it. I have a F900BT if that helps.

 

Thanks, Janet