So i recently purchased a model 3 SR+ and when i initially test drove the LR and had the upgraded audio. My question is if i purchase the factory subwoofer and Amp does anybody else know what i would need to hook it up? Wires..etc. I’ve been looking on this forum for options and I’ve seen the hannshow and nvx and both are options so I’m open to those if anyone has them installed but i want a more factory look if possible. Thanks.