Dutch Firetruck Siren

This is a dutch firetruck siren I made for gta IV.
The sound is from an firetruck in the netherlands. (Apeldoorn).

The siren have 2 sounds the standard and the quicker one.

Send me an e-mail "[email protected]" with the siren from real life (or link from youtube) to create a siren for gta IV or just for help