Headphone jack mod

[lnx64]

I'm going to be installing a headphone jack on my Samsung, as im tired of waking up my room mate at night when watching TV..

So here's my plan, and someone correct me if I'm wrong.. The 20k20 chassis my TV has does indeed have an isolation transformer for the speaker, and the speaker is 8 ohms.

So here's what I'm gonna buy: http://www.radioshack.com/product/in...3038%3B+jacks#

A closed circuit headphone jack.

And if I got everything right, here's how I'll wire it..

EDIT: I can only find Stereo closed circuit jacks at RadioShack, so that's why it's wired this way.