radio problem

hello i have a base model 01 impala 3.4 and im installing a aftermarket radio and i have everything installed but cant find the acc/ignition wire to turn the radio on any help is appreciated

From what I hear you might have some issues with the keyless entry, door chime etc f you go after market. there are aftermarket plugs that will help you with the wiring and the chimes.

thanks for your help i knew it was a yellow wire but it was not on the radio harness so i had to wire it from a ignition wire under the dash