I picked up an 18 Pathfinder, and it has the basic audio system in it. Typically, i would just replace the head unit and speakers, but it's not recommended to replace the head unit since the climate controls run through it. The premium audio system for that model is a Bose. So I picked up the correct Bose head unit, but I'm trying to figure out if I need to also get the factory Bose speakers. Can I get away with using another brand of door speakers? There's a factory Bose amp and sub... should I keep with those, or can I look at other options there as well? I thought I read in the past that Bose had unique specs, so i wasn't sure if other models would work in their place. Thanks in advance!