So I'm trying to upgrade the base speakers in my prius but I've heard that because of the hybrid system the electrical system is sensitive. For that reason I've been doing a lot of research into speakers that won't break the electrical system. So it really comes down to what are the best speakers that are safe to put in my prius? I'm looking into some Alpine R-S69 for the front and some Kenwood KFC-1796PS for the rear but I don't know if they're too power hungry for the car or not. Any help would be fantastic!