Just run a cable from the Direct TV audio out to your system.No need for a DAC,(can't figure out that comment).If you are wanting the entire SirriusXM package,you'll have to get a subscription and tuner.
Question Regarding Tuner And Satellite Radio
I sold my tuner(Yamaha T-1)last year becasue FM radio does nothing for me. I would much rather listen to cd's. Recently I got Direct TV which has Sirius Xm, I still prefer cd's but I am thinking about a tuner again for a change of pace. can a tuner be hooked up to my TV so I can hear the satellite radio through my audio system? What are my choices? I would appreciate any help. Thanks.