well ya got the answer to where they are at......now what to do about the weak horn, well I can tell ya, and how to do it!! This WILL fix the weak horn issue, I promise you!!
Here is the complete DIY install.....complete with EVERYTHING you need, where to buy it, and a step by step PDF file with pictures.
http://www.camaro5.com/forums/showthread.php?t=157184