Does anyone know how to delete the code function on the Clarion Diversity Radio (I have the code). I know it can be done and presume it's similar to the later Alpine radios where you just have to press certain buttons in a certain order in conjunction with entering your code.

It is done automatically if you send a unit to Clarion for repair, as is adding a line in, but no idea if it can be done otherwise. Try contacting Clarion and seeing if they will tell you (or how much they would charge to do it for you) http://www.clarion-service.co.uk/cs/Repair.html

They won't tell me. Surely someone else will know? Does anyone else service them cheaper? Sadly the screens seem obsolete.

The last one I sent to Clarion had a duff screen and all they had were what they described as Grade B screens and a very limited stock of those too. The only other company that does anything with them is GB4x4 but they only send them to Clarion anyway.

Had my one serviced last year, no screens left so blank screen now. But good service form Clarion (1998 model)