Hello there,
buddman442. Thanks for the post and welcome to the Community. If the Play:5 is making a high pitched sound regardless if the content is playing or not, I would recommend trying a different outlet for the Play:5. This will check to see if the Play:5 is having a problem with the power source.
Additionally, feel free to submit a diagnostic report as Bruce said above. be sure to reply with the confirmation number and we can take a look to see if any power faults come up.
If the issues persist after changing the outlet,
give our support technicians a call. They are able to finalize any other troubleshooting and replace the unit if needed.
Building community is like building a garden. You build the frame, till the ground, plant the seeds, feed the plants & sometimes you gotta pull the weeds.