HiCustomerand welcome to JustAnswer,
Would you like for me to check if Toyota sells just the rear speaker grilles? They may or may not. You might have to buy the whole rear deck assembly.
I will check for you tomorrow. Can you post up your VIN (vehicle identification number) of your car. We need this to accurately find the correct part for your car. I have never seen this happen before on the 2005 Camry's yet.