I looked at Grimmspeed, Subispeed, and Subimods. The Subimods looks like the most integrated solution with a relay/plug'n play harness. Grimmspeed has a plug 'n play no-relay harness. All use the Hella horns. What do you guys recommend? With the a#$hole DC drivers cutting in front of me with exactly a car length of room, I'm tired of the "meep" horn in the Subaru.