I love the sound but I would like to improve current set-up. Do I start with adding Lids and 6x9s, sub woofer in the bags, up grade existing speakers, new amp? I think i would like some bass.
I have the Power Acoustic RZ4 2000D amp, BT 7.1 non-pro speakers in the fairing, and kickers 41KSC654 in the lower fairing. I still have the stock head unit 2015 4.3 Boom Audio.

Thanks,
Brian