look at my post from the first page, i found that unit gives great sound, although it is amodulator it works amazing and trust me i know a thing or two about good sound!!!
i am new, and i just wanted to say that today i went to circuit city and got that fm modulator
http://www.circuitcity.com/ccd/productDetail.do?oid=80974&c=1
it works amazingly well, Love It.
i installed it myself in about 45 min'
and it was my first time installing something like that.
RECOMENDED