Help please Radio question

[3800SuperchargedGTP]

I own a 2001 GTP and I had recently put the theftlock feature on . My battery died so it went into lock mode after reading my manual I pushed the min button and entered my code after I pushed am/fm it said SEC and went blank so after I turned it on or on ACC it still remains with a blanck screen can u help ? The Bose stereo with only treble and bass NO Equalizer thanks

 

[Fivefingerdeathpunch]

I think you can use the code 510, worth a try.

Or if the screen is just blank and nothing appears, maybe the bulb burnt out.