Getting ready to replace my factory head unit and add Sat Radio... I've heard that the keyless entry remotes are received by the external am/fm radio antenna, and processed by the factory head unit before being passed on for processing. I've also heard that sometimes install techs will hide...

My liftgate sometimes malfunctions so that I can't open it. When that happens my remote will also not work - it will neither unlock car doors or open them. I have to manually open the car. However, the controls on my driver's door will unlock all doors except for the liftgate. When the...