Front mounts are supplemental using the factory bushing.
For the rear you have two choices from superpro
One is a press in replacement...
Upgraded to a 98 supra steering wheel.
Original owner got rid of the clockspring and the 93-96 are discontinued, so I got a hold of a 94 camry clockspring and connector from the junkyard.
Cut the old connector out and pinned up the camry one and I have a functioning horn again.