What is involved with adding electric leather seats to a 2005 Crossfire?

First off you need the wiring harness for the seats, then the body control module needs to be replaced with one that has power/ heated seats. You would have been better off getting a kit from jc whitney for 100 bucks to do your cloth ones.

Thanks. Just happened to get a great deal on the leather seats, but sounds like the control module could be expensive. May just turn around and sell the leather seats and take your approach.

It would be easiest in the long run and cheaper, sorry for the bad news.

Just as a follow-up, I got the seats and was able to install in about one hour. Even though the original seats were manual, I just plugged in the new ones and all electric functions work fine. I don't know if they are equipped for heat, but I garage the car in the winter, so it is not an issue. So now I have a set of black cloth seats for sale...