I RECEIVE AN AUTO ALLOWANCE FROM MY EMPLOYER AND IS INCLUDED IN MY W-2 WAGES. WHERE DO I ENTER SO MY MILEAGE DEDUCTION WILL NOT BE AN ITEMIZED DEDUCTION

[Opus 17]

The itemized deduction subject to the 2% rule is the only way to deduct work related mileage.  There's no special trick in cases where you get a car allowance.  Basically, you got a raise or bonus to help you pay your car expenses, but you deduct them under the same rules as everyone else.