03 Boxster S guages

[fredpayne]

Thanks a lot that is perfect, exactly what I needed to know, in the link you sent, it had one thing I wasn't sure about:

"Remove the negative terminal of your battery before you start, and have your radio code handy."

I know to remove the battery cable, but why the radio code, plus I have no clue where that is or what to do with it, I can do the rest, but this has me puzzled.