How do I get rid of code light in my Honda wagon ex?

I bought this 1996 Honda wagon . It has 123,000 miles on it .I cannot play the radio because the display panel shows code on it. Any way I can fix it without going to dealer?How do I get rid of code light in my Honda wagon ex?Very simple...........if you want to do this yourself you can either pull the radio and get the serial number and then call the vehicles manufacturer and give them the VIN and proof that you do indeed own this vehicle and they will supply you with the code or look in the glove box all over inside and try and fine a small sticker that is 1/2 inch by 1 inch, it will have the code on that, good luck.