Ok... it took about all evening, but I wrote up the install in Stealth's forum on LXF, because, after all, the install was on a Magnum SRT8 rather than a 300C although I believe it to be applicable to both.
Rather than repeat it here... due to the lateness of the hour (EDT), I'm just going to link to that thread for now...
Hope no one minds the short-cut!
How-To Install Stealth Auto 6000K HIDs on a Magnum SRT8