Anyone upgraded this system without much change to stock equipment . I can live with it but need a little more bass . It’s a 66 plate searches online not really anything custom out there .
I mean like adding say a amp or under seat subwoofer . There’s a sub already can’t locate but it has no punch . Would adding a sub just cancel each other out . I really have no clue about technical side of things . Use to just install stuff and hope for the best . But now it’s all this canbus equipment. So a bit lost but there’s a device called pac amppro which is plug and play as I would like not to cut into any stock wiring . The only thing it’s a USA based product so not on there compatible list .