Definitely a cool idea.
I had something like that installed on my SVT a couple of years back. Then I took the front bumper off to do some paint work and lost my adapter.
I don't drive my SVT in the winter anymore so I never got around to re-installing the plug adapter.
I have the euro grille with the flip up emblem and just based on looking at it, I don't think the female end of the plug would fit behind the emblem.
If you need any measurements off the Euro grille, incase you decide to go that route, just let me know.
Tom's Tune // CFM 67 TB // VF R&DrEM // Steeda STS // Boss 302 SKnob // Eibach Pro-Kit // KYB AGX
CFM HFC & Flex // MASSIVE STB // Hella Xenon Euro-Spec HIDs // EuroStar LED Tails