What's a "Video Accessory"? & I think I have one, but ...? - red white to earphone jack

I have my iPod to a TV with a cable that comes with the speakers on my iPod. It has the red / white / yellow cables in IT and a headphone jack can be regularly connected to my iPod.

So I connected everything, (because I am currently on my iPod video -> TV)
And I'm sure I'm right, because if I try to play the videos, asking me if I want to enable or disable the TV-output / and when I press the "ON", told me that a connection with a " Video accessories? wth that ...
If I & iPod set to "off", playing a video on, but no sound from the TV ...

HELP?
PLS & thnk youu.