Unable to delete Data Provider because it is used by 2 KPI's, but no way to find the 2 KPI's

Trying to delete a Data Provider, but it won't allow it because its used by 2 KPI's. Unfortunately, it didn't list what 2 they were. And its literally impossible to find what KPI's are related by walking thru the workspace, because I couldn't find the Data Provider attribute that would indicate that the KPI uses what Data Provider.