I disconnected the battery and then I reconnected and I saw that the radio didn't work and it has 3errE in the display. I have the code but I can't enter it. I don't know what to do so it can appear CODE and then enter the code. please help me. thanks

 

im not sure but is there a reset button on the stock radio? could try disconnecting the battery again

 

i had the same problem..but i bought a new deck to replace it cause i couldnt find the code..a different deck looks cleaner anyway.

 

actually i had an alpine in mine for awhile then it took a **** on me so i put the stock back in, im thinking oem looks cleaner...but then again its a difference of opinions