Sat radio hookup

[avdoc]

My 04 Hoe has the 6 disc indash, no cassette player. I am tired of using the fm tuner for sirius radio, and want to wire it in. I have aux button on head unit, but no hook ups for anything. I dont drive this much, but like to have it when I do, I have it in my Dodge built in. I dont want to mess with changing head unit due to steering wheel controls, and a buddy has the pioneer I think his steering wheel controls work with it, but I dont like the adapter kit in dash. I like things clean and factory looking. Is there a way to wire to head unit, or any hook-ups on back for the aux. I didnt know if it had the ability to use a remote changer, if so I could use that hook-up.