Camry :: 2011 - Horn Doesn't Work As Pressed From Steering Wheel

Just want to get some input before throwing in the towel. The horn doesn't work as pressed from the steering wheel. Took the horns out and tested it manually by connecting it to the positive terminal and ground of the vehicle. One (high) didn't work while the other (low) worked. I purchased an aftermarket replacement for the high pitch horn and installed it. Still nothing. Checked the fuse inside the fuse box by the right side engine bay and it is ok. Can't find the location of the relay since we bought this used from the dealership. No manual and the cover to the fuse box (inside the vehicle) was missing.