I'm not sure, but my XF may have come with the mats... do they have "Crossfire" printed on them?
Look on ebay. I just got a set for mine. They look great. Cost a little over $100.00 bucks. Looks a lot better than the stock mats. Check out the "Christmas gifts for the crossfire" thread.

:P First stop.. Wal-mart! I'm pleased with the sound, though I may replace the dash unit some day. What is this capacitor radio mod you speak of.
Read the "biggest bang for the buck" thread.

Now, there was a locomotive conductors air horn I was considering... :P
You could go to a truck stop and get the horn and some mud flaps with the "silver lady's" on them. Boy, That would be sharp.