As far as recomedations for a cd changer, go Alpine all the way. They
are the best sounding (IMHO), most reliable, most compact, most bang for
the buck machines on the market. Also they are the only ones equiped
with a coax digital output. Cool.
If you use an rf modulator, I strongly recomend using it only until you
can upgrade to an after market head unit. Rf modulators from any
manufacturer seriously compromise the sonic performance of the cd player,
especially when used with a stock radio. The sound quality is determined
by the performance of the tuner, and stock radios generally arent champs
in this department. You'd be doing yourself a big favor down the road by
upgrading to an aftermarket head and connecting the changer directly to
the head through the aux inputs. If the head you has cd changer
controls (you'll have to buy the same brand as the changer to get this)
it should also have provisions for directly connecting the changer.