We can confirm that the two small, tan capacitors to the right hand (as you face the back of the case, looking inside from the display end to the back panel) of the audio connectors are the correct ones to take off. We have been doing the mod on Derek's early (series 08) Mk2, and I opened my later 2 to find the same pads were there but with the caps already desoldered. Don't confuse the cap with the resistor adjacent to it on the right hand connector.

The way to identify the cap is that one end is earthed, the other connects to the centre contact of the RCA connectors on the board. There is a thin track running from one end of the cap to the connector, the other end is connected to a "fat" earth track.