Radio Issue

Ok, so to cut a long story short, I recently had the cambelt changed on my Discovery 95 300tdi, and when I got it back the radio just said 'code in'. Even though we have the code, we mistyped it. Now, it just displays the wrong code. Won't do anything else.

I have tried disconnecting the battery for about 4hours thinking that would be more than enough, but its not.

Anybody know how to get the radio back to 'code in'?

Thanks

Please someone help!
It was me who typed the code wrong and now everytime we go out I get..

"It's really boring in there with no radio on you know..."

lol

Yeah, thanks JP.

Its unbelievable. What are the chances of you guessing a 4 digit number and getting it wrong