OBC hack for '03 986

[sd_boxster]

I have the urge to do the single-switch (non-stalk) OBC hack for my '03 non-S Boxster. I spent a while last night searching, but a lot of the resources I found were dated.

Anyone here with an '03 done the OBC hack? Any comments or tips?

Also, my understanding is that the single-switch will let me toggle through all of the modes, but the second switch allows setting the audible speed notification. Is there any other functionality that will not be available without a second switch?

Thanks in advance.