Be careful with these parts-- I have also seen posts that say that the 981 module only works with non navigation equipped cars, the -365 module only works with navigation-equipped cars, and that the -140 part works with both nav and non-nav cars and supercedes both the -365 and -981 parts. Finally, I believe that the -140 part has the more modern single antenna input, where the -365 and -981 parts have the dual antenna inputs.