wiring PA / airhorn system
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=18557
Printed Date: July 20, 2025 at 6:55 AM
Topic: wiring PA / airhorn system
Posted By: y2kmental
Subject: wiring PA / airhorn system
Date Posted: September 06, 2003 at 2:20 AM
hi, I am not sure if this has to do with car audio but I have a federal PA300 siren with 100w speaker. I was wondering how I should wire this into my car. I am skeptical if it will take too much from my alternator. I already successfully installed a new sterio, xm radio reciver and 4 DC outlets, and 1 spinning light. I dont plant to use it much just in emergencies sine i am an emergency medical technician. i have a 90 mitsubishi mirage. thanks for any input
Replies:
Posted By: auex
Date Posted: September 06, 2003 at 3:42 PM
Is the system 12V? If it is, then as far as wiring it into the vehicle, there should just be a power, constant or switched which ever you prefer, and a ground. Then just run the wiring for the speaker. Also you should make sure the speaker is water proof.
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Posted By: y2kmental
Date Posted: September 06, 2003 at 9:22 PM
Yes it is 12 volts, what guage wire should I use for the 100w speaker? The speaker will be under the hood behind the grill
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