well i just purchased a 2003 350z and it comes iwth a bose audio. I cant get the subwoofer that is behind the drivers seat going. All the other speakers sound so im wondering is there a seperate switch to get the sub going. I tried adjusting the bass on the audio menu but that only gives more bass to the smaller speakers.

please help
thanks

 

Welcome. Get yourself a factory service manual free on the internet. Wiring diagrams are very detailed. Believe that the woofer amplifier has a power ON/OFF controlled by the head unit.