I recently bought a Road Runner "Beep Beep" horn for my 2006 Mazda 6, go ahead and laugh, I know you're all jealous. Anyways, I do not want to replace my existing horn because it's freakin loud and I love it. I just want to install the Road Runner horn as another horn and push a button to activate it (my car didn't come with head light level adjustors so I could put the switch in that slot). So my question is, will I need a horn relay for this project. Any additional information besides a yes/no answer would be greatly appreciated, such as tips on how to install the freakin thing, thanks.