[f5fstop]

Did anyone lose the ability to fade front/rear with the adapter? Per one of their techs, I will lose the ability to fade the sound. Looking at their so-called online instructions, it appears that on some GM vehicles with rear controls you lose this ability; however, without rear controls you retain this ability.
Their answer, and their so-called online instruction (which are some of the worse instructions I have ever read), does not give me a warm and fuzzy feeling about this adapter.
Granted, their online instructions could be just that, and a better set comes with the kit, but they have some inaccuracies that are noticeable such as Onstar leads coming in on the 24-pin connector.
Are there any other companies that make this type adapter?