I am trying to figure out the best way to add an amp and subs to my factory bose system i tried tapping into my leads going to the factory amp but i cant seem to get anything to work. If you know anything about doing this i would appreciate some advice.

 

Your answer will vary depending on whether you have Bose or not, a sedan or an Avant.

 

I saw a diagram on here once where it shows you step by step on how connect aftermarker amps n sub, search it on here

 

I have a c5 a6 with the bose amp and stock subwoofer, i installed a 15' single sub and a 1600 watt amp a couple years ago and has been working great since... i pulled power and ground as normal but i pulled remote from the plug on the factory amp and L and R channels from there as well, i just googled for a bose pin out and went from there... I got one of those wire to RCA converters and some wire splicers. It's a bit of a pain in the *** to get the splicers on cause the wires are tightly strung and there's not a ton of slack but a little patience and it'll go great! Good Luck! Hope I helped