I’ve seen a couple other threads on this topic when I was looking for mounting ideas but didn’t find exactly what I wanted. Short of the story - I had another system mounted under the truck but an intersection filled with slush from a 45 minute hail storm ripped those straight down. So I took advantage of a weekend with the brother-in-law, copious amounts of beer, and descent Colorado weather. Here’s my mounting criteria:
1-KEEP THE SPARE TIRE
2-Protect the new horns from the elements
3-No new holes in the truck (bed or cab)
Went to HornBlasters for the Conductor’s 240 kit. Highly recommend them for both the top notch product as well as the incredible support. Left my previous horn switch - on the consol in one of the blanks next to the “Tow Mode” switch just north of the shift knob). Mounted the tank and the compressor on a piece of diamond plate under the rear bench, passengers side. Also included a wiring relay so if I ever needed to pull the setup out, it was all together and didn’t need to cut any wires. Mounted the gauge on the drivers side of the tank for visibility. Mounted the air tube to the door side with a T fitting and included a fitting for onboard air. I know the 2 gallon tank won’t go a long way, but certainly would be better than the emergency plastic pump I used to carry! The air tube exits the cab through the factory “flap” right behind the jack and runs between the cab/bed to the undercarriage. Mounting the horns wasn’t hard, but the completed assembly was too large to pre-assemble and them move into place, so most of it had to be done from under the truck. (I’ve seen people mount their horns between the grill and the radiator, but those were not Titans - not even close to enough room!). Bought 2 @ 5 foot pieces of drilled flat stock from Lowes and off we went. In short, made a frame and mounted the 4 horns to that frame. They say the horn direction doesn’t matter, but still felt better having them facing different directions just in case (east to west rather than north to south to keep as much debre out as possible). Then used a few short pieces to mount the frame to the bed. The bolts that mount the heatshield to the bed are perfect to anchor to!
I know this is a niche thread, but hope this helps if anyone doesn’t think life is loud enough already.