My SE Honda Accord (2002) battery was replaced after several jump starts and now the radio is showing "err." I can not pick-up any stations and the CD will not work- any suggestions..

Ummm... every stock-deck has a code that you must enter right when you plug in the stereo. You can get the code from your local honda dealer. Your Car stereo has an i.d. number which is located either on the top/bottom or side. You call them and give them that i.d. number and they'll give you the code