Caveat 1 - this installation is a little mickey mouse/ghetto
Caveat 2 - I haven't put everything back together yet - have other mods I'm working on - so only 98% or so sure about this
Removed the stock horn and put the compressor basically in its place - hose clamped it to the stock horn mounting bracket
Front view - note that the compressor body "overlaps" the curved plastic part, that will cause some mickey mousing later
This is the area I chose for the horn,