Hi Brent,

There have been a few postings on other groups regarding MP3 software bugs
in this unit.

If you visit the BP USA website, look for the 5 series radios and get the
measurements for the Reno/Aspen unit.  It "just" fits.  If the SJ is much
larger then you will have a dash protrusion of some degree and the DIN slip
fit adapter will have to be modified a bit.

YMMV (your music may vary)