HDMI to composite cable for Xbox 360 E?

So cleaning around my room I had the unfortunate accident of pulling the standard A/V composite cable that was hooked up from my 360 to my TV and now I won't get any output from the 3.5mm jack. I believe it's damaged, but after testing the console on a friend's
TV I noticed the HDMI output worked just fine. Since my TV doesn't support HDMI I was wondering if I can get any generic HDMI to composite cable for my 360, short of just trying to get my console repaired so I can use the old A/V output again

:)

 

360 trade in question

will gamestop knock off anything if i have a hdmi cable with it instead of composite cable?

 

HELP a 52 year techno idiot dad

You should have a composite cable with you 360E, so no need for an HDMI cable.

360E setup instructions here;

support.xbox.com/.../360-e-console-setup

 

you should be able to buy one online, if Microsoft no longer sells one, you can try amazon or ebay ect.