Radio problem

I disconected my battery the other day to clean some build up on it. now the radio doesn't work. I was wondering if there is a way to get it back on with out having to take it to the dealership? I have the code for it,but just don't know how to punch it in or where to punch it in.

Since you have the code the unlock procedure is in the owner's manual if you have one under Theftlock. Checkout the link below for which buttons to press:

http://www.automotiveforums.com/vbulletin/showthread.php?t=186527&highlight=theftlock

Depending on your year model the preset buttons mentioned may be 1 and 4. Also make sure ignition is in accessory or run. Good luck!