Will I didn't get any clear answer about getting a cleaner signal, so probably wait on that. A guy from Infiniti forum said that if they're like the g35, the wires going to the amp should be low voltage signal and I can just cut a rca cable and tap it and won't be needing a loc. I'm not sure which one and thinking it won't get the low tones if I don't get the subwoofer signal. I'm looking at a secondary battery right now and I'm not totally sure if I should and which one. Is it necessary to wire out a ground wire for it or can I just bolt it to chassis? The 2 batteries I'm debating on is a xp2000 for $225 and d5100 for $250. D series can be use for cranking and have 3000w max. Xp is 2000w max and has more rc and ah. Which one will be a better choice?
