Installing a Whelen hhs2200

[Six Gun]

Installing a Whelen hhs2200,

Has anyone hooked up one of these before, or any other siren with a 100 watt siren?

I have a 10 Ga. wire feed from the amp head to the Siren, and 6 Ga. wire feeds for the Power from a glass fused block. Can you tell by the pdf if I need to install a relay, or can I skip it? Here is the pdf.

Any help would be kind,

Thanks, Six

http://www.strobes-r-us.com/admin/InstallationManuals/hhs2200.pdf