I have a Fiesta i.4 Style TDC1 with Sony 6000CD installed. Only problem every time I get into the car I have to re-enter the security code. I go through normal procedure using buttons 1-4 for setting the 4 digit code and button 5 to enter Audio now plays I finish my journey switch car of come back a couple of hours later and have to repeat the process again. Am I missing something no info for this prob in manual.

Sam from Nottingham, January 2012

Most likely the fuse for permanent supply is blown. This supply is the one which retains all memory functions such as station presets and also your code.

Pat--Car Audio Repairs, February 2012