hi had to take my battery off my car yesterday to charge it and now the radio needs the code to operate. can anyone help with the code. serial no gm1300t6070331, model no 7 647 852 320. this would be much appreciated as my wife is the main driver and the radio is a must when she drives, would get me back in her good books also. thanks billy.
code 0740 Switch On Ignition (No Need To Start Engine) Press & Hold Preset " AS " and Switch Radio On - Display Shows " SAFE " And Then Shows " 10 - - - - " Press preset " 1 " repeatedly for 1st Digit Press preset " 2 " repeatedly for 2nd Digit Press preset " 3 " repeatedly for 3rd Digit Press preset " 4 " repeatedly for 4th Digit If the correct code number is now shown Press & Hold Preset " AS " Until the Unit Beeps