I have a Sanyo SDTV in my room but there is no headphone jack on this tv, but there is two RCA audio jacks in the front. (my headphones connect via 3.5mm)

So I bought a "3.5mm 1/8 Female Jack to 2 RCA Male Audio Cable" (aka 3.5mm to RCA adapter).

Then I hooked my 3.5mm headphones to one end of the adapter and plugged the other end into the "Audio" rca jack in the front of my tv. BUT there is no sound from the tv coming into the headphones!


I went into the tv menu options but there is no audio options. Is there a way for me to use my headphones on this tv even with the adapter I bought???