Batboard

I have a Fed Sig Smart Siren SS2000 and have just purchased a CDM1550 radio. I would like to integrate the mic into the SS2200SS PA connection. I have seen this done with Spectra's.

If you have any ideas on how I can accomplish this?

Any assistance is greatly appreciated. =)

Ryan

I found out that this part may be called a ULM16-SS made by Unitrol. I found this at http://www.pwservice.com/fedsigsiren.htm. Does anyone have ideas on how this is done? It sounds relatively easy, right?