Installing a Federal Model 28 on a new vehicle.

Josh_m

New Member
I have a federal signal model 28 siren that I want to install on my Silverado but I’m not really sure exactly how to go about doing it. I know people have put Q sirens and 28s on new vehicles before but haven’t found any exact details on how to install one. Anyone that could help me out I would greatly appreciate it.
 

Skulldigger

Site Guru
You need a solenoid to operate it. That way your large cable from the battery goes straight to the siren and the small wire passes through the switch. I have this B&M siren diagram. You wont' have the brake, so only a 3 pole solenoid would work.

800_Wiring_diag_retro_c.jpg
 

Skulldigger

Site Guru
Awesome! Thank you.

Here is an old thread about wiring a 28. Good pictures by GSPD, shows the details

 

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