Sir may I ask for advise for the right size of subwoofer speaker for honda jazz. Since maliit lang naman ang interior nya and I'm more inclined on sq route, would an 8" subs will suffice my need. As of now I already installed 2-way seps powered by my HU only, I'm planning to install an amp to power the seps together with the sub but need to know the ideal size of subs based on the size of my car. Thanks