"milos" wrote in message
om...
I need to connect an external device to my Pioneer HU. I understand
that I need the RB-20 adapter. A friend told me that the adapter is
very simple, and that I can build it myself. Can anybody send me the
diagram? Or a link to the diagram? That diagram is mentioned a few
times on this and other forums, but the links are pointing to pages
that are not available any more... Thanks.

You will prolly be much better off getting a previously owned one.