Thanks for checkin out my post, im sure you can help
btw ive searched and read many posts and have seen many opinions on this, so dont get made at me haha

i have a 2001 audi a4 b5 bose symphony

so i got a sub and amp, aftermarket. 2 kicker comp's and a kicker zx300.1 amp I hooked them up and they work fine. So i hooked them up to car battery and a cd player for headphones, and it worked great. So i hooked it up to the little pins ( 2 of em) that stick down off of the stock subs and it played great! is this okay? I read about line level converters(and it seems to make it sound crappy)so i dont want to use those. and about splicing into the line level before the bose amp. My amp has a filter in it so it will only take the "bass" frequencies.
Is it okay to just tie it in right there and disconnect old sub wires so they be quiet. (Right one rattles like when u hold your finger up to a sub, it makes a tap tap tap sound.) and these are good deal and i want more bass. MOARRR BASSS. haha dont ask me why.
so. tie it in right there? or splice into pre amp line levels in the back. Any difference? and any "real reason to use a line level converter, since i tested it plugged right into that sub and it worked.?
Thanks guys your awesome

 

To answer your question quickly: Yes - you can tap into the speaker leads.

 

u can tap into the stock rear speakers using a special device. its a small box that has an rca jack output and regular wire inputs. the wires hook into the rear speaker wires and then u plug in an RCA into it and run that into ur amp and itll work

 

hi everyone i have a 02 audi a4 and im trying to put a aftermarket amp and subs in it i cant firgure out how to wire the power cable from the batery to the amp i cant get past the fire wall if anyone knows how to get through it please help

 

there should be a rubber gromet that u can open up. and for the op lineoutput converter best route tapped into stock subwoofer wiring.