I know this is redundant but I can't find a solid answer. I have an '01 a4 1.8t with symphony. I have a PAC line output converter. I need to wire my amp I have the power wire under control. I know I can tap the rear speakers in the trunk ( I don't want to try to take out my factory headunit) Do I tap before or after the amp? has anyone done this or know which wires on the speakers go to which on the LOC? colors? Should i tap them by making a T connection? I know this has been posted hundreds of times but they all seem to have b6 and b7's with bose.... I appreciate it if someone who knows can lead me in the right direction.... Thanks!