How do set the code on a 1999 Acura CL radio?

To set the code on a 1999 Acura CL radio, first, turn on the ignition and the radio. If the radio displays "CODE," enter the security code using the preset buttons (1-6). If you enter the wrong code, wait for a few minutes before trying again, as repeated incorrect attempts can lock the radio. If you don’t have the code, you may need to consult your owner’s manual or contact a dealership for assistance.