can not connect sirius radio to receiver 8050

My husband recently purchased an Onkyo receiver model 8050 (this model was recommended by the Onkyo district rep) my husband's goal was to be able to get sirius radio at home--but it seems this model does not support hook up to the sirius system.
Please advise if there is a special part that we need to purchase to make this happen.

Hi cjackel,

Unfortunately it does not have the Sirius antenna connection on the back. It does have the SirusXM under the NET function on the receiver, all that is required is an either an Ethernet cable for direct connect or the UWF-1 for wireless connection.