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In order to retrive the code you can call the acura dealer and see if they will give it to you at no charge. They will require the radio serial number, which can be retrive like this:
Radio unlock procedure
With key in the "on" position:
Press preset buttons 1 and 6 at the same time.
Turn on radio.
An 8 digit serial number will appear on display. (if stereo was locked up at the time).
NOTE: Example, If your display indicates L512 3 U123 5
You must enter your radio serial# XXXXX the order form below:
EXACTLY AS YOU SEE IT ON YOUR RADIO DISPLAY
IN THE PROPER ORDER
Be sure to include the "smaller" digits!
Write this number down, as you will need this number for form below.
Your vehicle requires that you remove the radio from the vehicle in order to retrieve your radio's serial number.
If the dealer does not want to give you the code you can purchase the code for $28.99 from this site: