Don't know the make, but there is a Motorola wired kit in. Is it worth doing anything with changing the cradle wise? Do they still make wired cradles for new phones or just for the old stagers.
I'm guessing behind the dash the wiring will have already been cut to allow the phone through the speakers, and wired into telemute as toyota/lexus don't use ISOs. I don't have an old Motorola to stick sim in to test it.