Bugs Buggin' You
You may need to pop your speaker covers to get them cleaned out. If something as large as a butterfly got in, they are probably not fully seated. This assembly just snaps in.
If you have a service manual, you need to look at page 3-11 and follow the instructions for removing the Meter Panel.
Basically, you need to carefully remove the ignition switch cover (it pries out).
Then, carefully release the two tabs on each side of your nav or odometer panel. Carefully raise the rear portion of the meter panel and release the two bosses at the bottom of the panel from the grommets.
Next, release the tabs around the speaker grilles. Don't forget that there is a tweeter speaker connector and possibly the multi-display control switch (depending on model). Once these are disconnected, the Meter Panel should lift off with the grilles included.
Now, clean the grilles and reverse the process.
Hope this helps.