Alright, after closer inspection, the rubber filling is not flush all the way around and where it is not flush it appears to recess about an 1" or more making me think parts of the rubber are missing. Basically it does not look like the picture I posted but does not look as bad as the Onehundre80 picture.

Since I will be down there working on the alternator, why not replace this at the same time. At oediscountparts, I searched for the 2004 Mercedes SLK AMG and the Crossfire SRT 6 and this is what I found.

The Mercedes search resulted in a $307 part.
2004 Mercedes-Benz SLK32 AMG Parts - OE Discount Parts

The Chrysler SRT 6 search resulted in a $375 part.
2005 Chrysler Crossfire Parts - OE Discount Parts

Based on the handy dandy engine chart they provided (which is really cool), they appear to be the same part with a $75 difference. Making sure these parts are identical and correct for this replacement.

Thanks