Audio Upgrades

3hcp

Member
Messages
256
Does anyone have any advice on audio upgrades for a 4200 spyder ?
I have already done the focal speakers but there’s little improvement, I want to keep the Oem head unit but need to add Bluetooth phone operation and better sound. I have looked at the Loudlink option which does the phone but won’t improve sound quality. I understand that you can bypass the amp an install a better quality one and underseat subwoofer has any one done this or got any information on how to and what products?
regards
H