High pitched noise from stereo

[dnt1010]

unfortunately the rear entertainment head unit is in a very exposed spot and easily damaged. Mine is still working after a couple of years mainly due to me constantly cautioning the kids to be careful around it.
Just bite the bullet and replace it again and then maybe figure out which kid (or drunk adult) is kicking the chit out of it and put a stop to that LOL

 

[Jerryrich0806]

I have a jvc tv radio in my 2011 tahoe ppv. The factory door speakers were scratching when I turn the volume all the way up. Changed them to rockafogate 6 1/2 and they scratch too with the volume all the way up. Any suggestions