Hello,

Here is my case, my car's stock audio head unit does not have an RCA and I am planning to install a powered sub woofer.
Tanong ko lang kung ano ang performance difference if ever ikakabit sa RCA ng head unit yung powered subs compared kung i-tatap lang sa existing speaker lines? Will the powered subwoofer be underpowered (mas mahina) if I just connect it by tapping on the existing speaker wires? Will the subwoofer perform better (mas malakas) kung sa head unit mismo ikakabut yung powered sub? But on my case, hindi pwede ikabit sa head unit since walang RCA yung head unit ng oto ko. Or will the difference in performance be minimal na hindi naman halata?

Thanks in advance!