You might find this thread helpful.
I haven't installed my SAVV camera yet. I've tried it out, but for the most part, it's been sitting on my desk.
Galant eh? I've got an 02 Chrysler Sebring Coupe which is basically, mechanically a Galant with a chrysler exterior and eclipse interior. I don't know if your backglass is as big as mine, I'm planning on mounting mine inside on the roof right by the rear window.