How to play a FLV file located in a second FMS?

How to play a FLV file located in a second FMS not directly accessible by the flash client?

- I am publishing an audio stream from the flash client to a FMS;
- This FMS then publishes the stream to a second FMS, which records the stream to a FLV;

How can I play in the client the FLV audio file that I recorded in the second FMS?

- The first FMS is accessible by the flash client, but the second FMS is only accessible by the first FMS.

thanks in advance
fabio