In the video of Engine 211 acting as E-43 from the bottom up (Bumper to Light bar and roof)...
1) driver side corner of bumper - Federal Q2B siren (The one you hear in the video)
2) a set of 1-Red and 1-Clear Haligen Flashers each side (4 total - 2 Red/2 Clear)
3) Headlights with a headlight flasher kit on them (4 Headlights)
4) Turn signals
5) Federal Vector Light Bar
6) Roof above the jumpseats - appears to have a P.A. System of sometype added.
As for the light on the Snorkle... it does appear to be an "Opticom" style pre-empting light.
1) driver side corner of bumper - Federal Q2B siren (The one you hear in the video)
2) a set of 1-Red and 1-Clear Haligen Flashers each side (4 total - 2 Red/2 Clear)
3) Headlights with a headlight flasher kit on them (4 Headlights)
4) Turn signals
5) Federal Vector Light Bar
6) Roof above the jumpseats - appears to have a P.A. System of sometype added.
As for the light on the Snorkle... it does appear to be an "Opticom" style pre-empting light.