Hello Mike Liveright,
If we're understanding you correctly, you want to use the Find My feature to locate a device but you want it to not play a sound. Is that correct? Take a look at the following support article that gives more information about this feature: Locate a device in Find My on iPhone - Apple Support. This section specifically discusses how to silence the location sound before it turns off automatically:
"Stop playing a sound on a device
If you find your device and want to turn off the sound before it stops automatically, do one of the following:
- iPhone, iPad, or iPod touch: Press the power button or a volume button, or flip the Ring/Silent switch. If the device is locked, you can also unlock it, or swipe to dismiss the Find My [device] alert. If the device is unlocked, you can also tap OK in the Find My [device] alert.
- Apple Watch: Tap Dismiss in the Find My Watch alert, or press the Digital Crown or side button.
- Mac: Click OK in the Find My Mac alert.
- AirPods or Beats headphones: Tap Stop in Find My."
Let us know if we can help with anything else at all or if this doesn't settle your issue so we can look into this further with you. Thanks and have a fabulous day!