The expense comes from replacing the head-unit, but wanting to keep all of the other interior functions, like chimes, and OnStar, since the modern GM head units act as a "brain" or "control unit" for many other interior functions.
What is required, besides an expensive installation, are additional modules to supplement these functions with an aftermarket head unit.
As far as speakers go, when hooked up to the factory head unit, these can be a challenge, as there is a factory amp on most of the audio systems, so various methods must be employed to get the signal to the aftermarket equipment.
Good luck!
What is required, besides an expensive installation, are additional modules to supplement these functions with an aftermarket head unit.
As far as speakers go, when hooked up to the factory head unit, these can be a challenge, as there is a factory amp on most of the audio systems, so various methods must be employed to get the signal to the aftermarket equipment.
Good luck!
