I have the single disk stock system. As many people have already said I am not thrilled with the bass. After looking aorund I purchased a Kenwwood ksc-sw1. In some other threads people said that they have installed these under the front seat, which was my plan. After pulling the stock H/U out I saw there was no place to plug in the sub. Does anyone know if there is an adapter I can purchase or if I need to purchase an after market H/U. Thanks for the help.

 

The Ksc sw1 has rca and speaker level inputs. Use the speaker level inputs. Just tap off of the rear speaker wires and run these to your new Kenwood sub.