Finally changed the horn.
[ame]http://youtu.be/o86kRYWHOzQ[/ame]
It's an alternative to the popular Hella Supertones. You can still find it here:
[ame="http://www.amazon.com/PIAA-85115-Superior-Bass-Horn/dp/B0060ZB43G/ref=sr_1_3?ie=UTF8&qid=1370224201&sr=8-3&keywords=PIAA+horn"]Amazon.com: PIAA 85115 Superior Bass Horn: Automotive[/ame]
Install was simple following the Hella DIY by driver01 on these forums.
http://www.ft86club.com/forums/showthread.php?t=14123