There are many things that can cause vibrations in a 2000 Toyota Avalon. One such cause could be a bent rim and another cause for the vibrations underneath the floorboard is the engine.
Fuses are located in the middle armrest and near the floorboard of each front door.
An auditory vibration (aka acoustic wave or sound vibration) is when the tympanic membrane (eardrum) is hit by sound waves and vibrates. This vibration is picked up, amplified and transmitted through the middle ear by the ossicles. This vibration ends at the oval window since it changes to fluid vibration and ultiimately electrical energy in the inner ear.
It's under the carpet at the front passenger floorboard. Pull up the carpet a little from the top and you'll see a small glass window directly on the floorboard in the middle which contains a flashing red light when the key is on accessory mode. Count the flashes to find the trouble code.
stapes against the tympanic membreane
dog
the incus transfers the vibration from the malleus to the stapes
median means the number that appears in the middle
Check the AC condensate drain, it's probably plugged.
On longer axles they are split with a carrier bearing in the middle to reduce vibration.
Huntington's Disease
Both the p and the n are pronounced
The fissure (what appears to be a crack down the middle of the brain).