Privia PX Line

[spiro13]

Hi

I would like to get a Privia PX870. Since I use Backing Tracts form BIB I would like to know if there is a line in port(don't believe so) and if not is there a way to play backing tracts through the Privia models. Neither Sam Ash or Guitar Center stores near me have floor models for inspection. I would appreciate any information from anyone with knowledge of these models.

Thanks

Tony