no it wont do anything. But be careful. One of my firends hooked up a amp in his 2002 tahoe and when he unhooked the battery it sent the car into protection mode. He had to have the dealer come and get it. and fix it. I'm not sure if he messed something up or if it was just because he unhooked the battery.
i went over to his house after it happened. I am not sure what he did though so it might not have been the battery i was just saying be careful about the newer cars.