Thank you all for coming to the rescue, but I figured out what the problem was.

TIP: When burning CDs, always buy the better brand.

Go figure...

I had my wireless transmitter sent back because it went on the fritz, but as soon as I received a new one back, the noise was gone so I concluded that it was the CD I had burnt.

As far as the stereo, I am kind of at a stand still due to school and being so busy. I have sort of accepted the whole wireless deal, but I hope to actually get a wired FM transmitter and have a port somehow mounted on or near the plate housing the cigarette lighter. Then, I could still use my Roadtrip (or buy a Tunebase) to keep it charged. We'll see how that goes.