A long time ago when I was first putting a system in to my car I was going to connect my RCA converter to the sub, so I started cutting the wires to splice in to. Then I realized "hey there is the stock amp, I can use that wiring harness." Reconnected everything, plugged my RCA converter in to the stock amp and vwola aftermarket subs/amp with the stock head unit.


Then to make sure that everything was still working I turned my amp off for my subs. Everything was working but the stock sub. I can't figure out why the stock sub isn't working, everything is connected. Any ideas?

 

The stock Bose sub is known to cut in and out...I have no specific suggestions though, other than testing the alternating current output from the sub amp with a multimeter to see if the sub amp has any output.