I was looking to replace the auto shift knob on my cobalt. (Backstory: The little plastic tabs that hold it in place broke off about three years ago) Recently however, the fact that it falls off constantly and goes everywhere has driven me insane. So I know the stock part is available for around $60 but I can get an HHR shifter for $26. So my question is, with so many things on the HHR being interchangeable, does anyone know if the auto shift knob also? Thanks.