Pre-wiring for a FM Modulated CD changer

I recently aquired a remote starter and I ordered a Sony FM modulated CD Changer (model 565 or something) I wanted to install the starter right away before I even get the Changer, so I wanted to tap all of my wires before hand since I will be doing so for the remote starter anyway.  This way I will not have to pull the entire dash apart twice, but just enough to access the wires I have pre-installed.  I have never seen how these FM get installed since the only changer I had plugged right into the deck for power.  I imagine there is just a ground and a 12v+ wire I need to hook up, but I just want to clarify.  Am I correct when I assume that is all there is to it?   I was planning on just using a relay to power the changer using the Accessory wire from the main Ignition harness as the trigger.  Is this necessary or is the draw from the CD changer low enough I could just tap the Accessory wire?  Is there anything else I am overlooking for this install?  On a second note: I know it is too late since it is in the mail, but do the FM modulated units produce good sound quality?

Thanks

FM-modulated CD changers can sound great---it'll basically sound like the best FM station you've ever heard.  More than good enough for most people.

The Sony changer will need a ground, which you can easily get right near the changer.  It also needs a source of constant power, and accessory (key-switched) power.

You didn't bother to mention what kind of car you have, but in most cases, you have to remove the radio to access the antenna plug---so that kinda makes the radio wiring the best/easiest spot to catch power.  And again, in most cases, the radio doesn't have to come out to install a remote starter----so this is really two separate jobs, and the only thing to gain by doing them at the same time is that you don't have to drag your tools out twice.