Best of both worlds:

Add a loud air horn controlled by a pushbutton switch discreetly mounted somewhere on dash ...

whilst ...

you are sourcing the parts needed to fix your OEM horn.

A non-OEM pushbutton on your dash can even get you through VA state inspection (ask me how I know ... but don't ask how I redneck enginerded the non-existent headlight switch (including the high/low feature)).