It looks like several people have been having issues with this functionality not working. Has anyone been able to resolve it?

Yes, its been my pet project to get it to work ..... It DOES work but only with the right equipment, and no documentation really tells you what that is. Basically, you need the SCVDOC1, a Starmate 5 (or Sportster 4 according to Pioneer Support), and the CD-SB10.

viewtopic.php?f=56&t=27827

Forgive my ignorance, but basically I'd need to get an external tuner and connect that to my nav to get it to work?

Yes, the "Sirius Connect" Function allows the HU to completely control the Sirius, and info will be displayed on your HU instead of the portable unit.... the downside of the Sirius setup is that you only get one line of text instead of three with the XM tuner, no channel logo artwork, and it costs ALOT more than the XM tuner to get the setup with the Instant Replay function..... unforunately, my wife says she wants to have the instant replay over the above with the XM, so I have been trying to figure out how to do it.

If the Instant Replay isnt that important to you, then just get the GEXP920XM and make your life and install much easier!

Kudos for figuring all that out...

...but this is ridiculous. Why even have the Instant Replay button on the GUI if chances are that 95% of owners won't even be able to use it?

That was rhetorical, of course.

What kills me is that they merged and Sirius doesn't have he same features as XM. I like Sirius' line up more unfortunately.

What kills me is that they merged and Sirius doesn't have he same features as XM. I like Sirius' line up more unfortunately.

If the instant replay doesnt matter to you, you can get almost all of the Sirius lineup via your GEXP920XM by purchasing the 'Best of Sirius" lineup via your XM account.