I just did this mod (the principle is not new to me, since I had to do the same thing on my other car some years ago
). Thanks to the originators of this though, for the instructions on how to
get to the horn!
First,
you DON'T NEED TO REPLACE the existing horn. Just add a second "Hi-note" horn on the other side - easy-peasy. I used the FIAMM 72102 "highway blaster" horn, such as this:
https://www.amazon.com/dp/ (commissions earned). Though the FIAMM 72002 would probably be fine as well (cheaper, though not quite as loud). Mount it to the other side earthing bolt using the supplied bracket and earth strap on one terminal. Then splice a new wire onto the existing horn wire and run it over to the new horn side and crimp on a spade connector. Done. Wife loves it - she was complaining about the feeble horn before, now she feels 'empowered'
. By the way, I'm still using the existing fuse and it's working fine. If it blows ever, I'll revisit
I also had a lot of difficulty getting the shroud out. I managed to release the front clips to the grill and manhandle it out as one piece. But couldn't get it back in afterward. So then I unclipped the top shroud from the metal bar, put the bar back roughly in place, clipped the shroud back on to the bar and slid it in the rest of the way forward. This bit is by far the worst aspect of the mod!
One other tip... when drilling out the pop-rivets, DON'T use a 1/8" drill bit and drill though - it takes a lot of drilling and finagling to get the rivet out, plus results in a lot of kerf. Instead use a 9/64 (or maybe 5/32) bit, drill slow and it will cut the head off the rivet in about a second! DON'T PUSH, as you don't want to drill a big hole into the plastic!