[semimojo]

Where are the records of these audits?

Here you go:

Federal Reserve System Audited Annual Financial Statements

Want to know what securities they've bought? Look here:

System Open Market Account Holdings of Domestic Securities

There's a lot more information available about their operations.

Is there something in particular you want to see from an "audit" that isn't already out there?

[thoughtomator]

Apparently there are some quite material things not included in the Fed’s internal audits.

http://www.campaignforliberty.org/audit-fed/