Here's the Thunderbolt I recorded for the monthly 1 PM test(even though it went off at 1:04pm) just as the siren is about to stop it's test, Harper woods 3 1000T's start. and after that you can hear what is possibly St. Clair Shores 2001 off of Harper Ave.
Grosse Pointe Woods Link
I have reuploaded this clip. It no longer has the glitches in it.