Quote Originally Posted by TheChosenOne View Post
No aftermarket radio is in my car or was. Everythings stock except for front components and an amp for that. But that has nothing to do with my sub i believe. So which line is my ground wire and is the ground wire the reason why my sub is not working? So that silver circle thing on the top of my roof of the trunk is not a ground wire?
Is that only the ground wire to the convertor? It looked like the wire from the convertor is combined with wiring going into the loom originally to me, which is why I said check it. However, if that is just twisted up and not connected to any other wire, then that is not. The other thing I would check is if the T-Taps possibly broke one of the stock wires and is no longer sending signal to the sub. Just disconnect the blue/red connector/tap and see if the wire is still connected. In the end, it could be 100 different things. I would call or take it by the original shop that performed the installation. If not local, take it to another shop.