My stereo works and my speakers work, so its got to be something in the middle and i was wondering if this could be the culpret

factory amp?

it says infinity gold on it so thats got to be what it is, mabye its time to upgrade?

You probably need a bypass harness, or maybe you can get lucky and find another factory amp in a jy. Didn't know until now XJ's ever came with factory amps!

its a ZJ but yea.

Ah, guess it would help if I could pay attention

But some XJ's apparently also came with the infinity sound system...