I've asked a question like this in the past, but I'm hoping that someone may have more knowledge now. I'm wondering how difficult it is to install rear a/c in an Expy that doesn't have it, but has a sunroof. I'm talking the 97 - 99 years, because in 00 and up they had both the rear a/c and the sunroof. On the models with rear a/c, is the compressor any different? Other than the wiring, would this be a difficult procedure?

 

Short answer, it'd probably be more effort than it's worth.