Classic install of outs

I brought an 8 output board for my 2000. I was planning on following the mpcstuff how to vid, but the classic is different the the Xl. I been searching here for an hour and can't find
a how to.
Do I have to remove the inside boards? Can somebody post a link?

Thanks

Nevermind I took it all apart.

The 2K is not that hard at all, very easy.