XM tuners/ receivers

I have a fairly vintage system,...  MR-78, Rogue Audio, Parasound, Marantz, dbx. I want to incorporate Satellite Radio into it, The MR-78 is a wonderful tuner, but because of my location , I have difficulty tuning the stations I want, even wth an external FM antenna.  I was thinking about an MR-88, which are becoming hard to find. 

Any recommendations on a similar tuner ..or...or is a simple XM receiver ok and can I put it thru my system using RCA Aux. jacks, etc?

Thanks!