Rpi Model B I Q wiring
The 'I' is already connected but you will need to run a wire to connect the 'Q' as detailed in the instructions.
The photo in the BATC article is a little small to see where to connect it, so am posting it here.
A place for ATV enthusiasts to get together and discuss all things Television. NOTE - all postings remain the copyright of the author, please get their permission before publishing elsewhere