Using the preset buttons on the radio's front dashboard, enter the security code to unlock it. you do not have the code get in touch with Acura to obtain it.
How to enter your2003 Acura tl radio unlock code
code for radio acura tl 3.2
You can find a radio code in one place. You will have to go to the Acura and ask for help.
underneth your ashtray there are numbers on it they are your radio code
What worked for me was to unplug the antenna in the back of the radio and then enter the security code. Once the security code is entered, you can plug the antenna connector back into the radio.
If your radio is locked and you DONT know the passcode then you need to call Acura....but if you do know the password...then you should enter it
Mine is in the owner's manual
Radio codes of Acura Tl vehicles are part of a standard anti-theft system. To the reset the system just unplug the battery from the car for at least five seconds.
Acura dealer does it for free but may charge you to get the radio code or serial number you can hold two buttons and get the code and just call the dealer or I think you can do it online too once you have the serial for the radio
http://www.justanswer.com/acura/5e16q-acura-tl-type-s-need-remove-radio-2002-acura.html
I think the code is located in the fuse box under the hood.
How do you take out a radio in a 1996 Acura TL