How can i install this sucker?

Question

http://www.autodirectsave.com/PS4-S-100W-Police-Siren-Speaker-Sound-System-P49C96.aspx

like i dont know about installing stuff in cars. what type of shops can install this in my car?

Answer 1

its actualy very basic, just mount all the stuff where you like them to be, connection from the control box to battery is needed, so just run a + wire to your battery and - to your car body

Answer 2

http://truckaccessories.net.cn