GMFS founding member
i installed infinity kappa 6.5" components up front, they're still running off the stock headunit. whenever i have the radio on and someone is talking, they buzz and vibrate at certain bass frequencies. i have to turn the bass all the way down to prevent this. it's not as noticeable listening to music, but as long as the right frequencies hit, they buzz. it's annoying as hell, how do i fix it? i have second thoughts on hooking these up to my alpine 5 channel if they're buzzing off 5w from the stock unit. advice is appreciated.