Never got an id after listening for another 20 minutes or so and went to bed. It was a strong steady signal with fades down to about the S-7 range at worst when static levels peaked. They were either running a decent amount of power or they were just down the street? I've never heard MW pirate with a signal like that on 1710 in years of chasing them since the X-band was opened.
Great audio, they sounded like your typical South/Central American MW/SW broadcast station. I'm still of the opinion it's the same station reported about ten days ago here with an id that escapes me now. (I ought to write these things down) The format and power seem very similar.