
First of all is my under bonnet storage/tool box utilizing a 50 CAL ammo box:
50 Cal ammo box (double sided velcro tape to stop it rattling)
box was $12.95 from the Wellington ST Army Surplus store (Perth)
top view of air horns mounted to side of box =)
installed with horns wired up with a Narva 4 pin relay.. these babies are nice and loud
FYI - From the relay, Pin 30 goes to positive battery terminal, Pin 87 goes to positive side of compressor, Pin 85 goes to positive side of factory horn plug, and Pin 86 goes to negative side of factory horn plug, and ground the other terminal of the compressor