so i just bought a 01 gt with the mach 460 and as i was looking in the trunck i seen that the amps weren't connected to anything and that there were 5 wires coming from the back seat i was just wondering if this stereo system came with a sub of some kind already wired in the trunk and if so how could i get one

 

Nope, sounds like someone disconnected the stock stuff and had aftermarket in there