[Bruce Wayne]

Wow ! a lot of mislaid or lost radio codes..

As a tip, what i have done with each of my cars is make a little card, business card sized on the computer (templates are available in word) with the radio and (and for the land rovers) the security codes.

You can even jazz it up with the maufacturer logo, and make it as OEM looking as you like, i then laminate it (laminators are as cheap as chips) and can make as many as i like, one in the manual wallet, one in the car file etc etc.

Not only is it helpful to have when you disconnect the electrics, its also handy for the next owner.

Just a thought.