as far as i can tell, this amp needs 14.4V to run.
is the STOCK FJ able to comfortably power that?? do i need to get more power? i am clueless, and have no idea what i'm talking about when it comes to audio... so any insight would be greatly appreciated!!
yes , it needs 14.4 volts to put out its optimum power. the FJ will put out at least that much when it is idling, so just run your self a good power wire, whatever gauge alpine recommends and make sure you put a fuse in the power line within 18 inches of the battery. The amp will run on 12 volts, they give you a power rating at 14.4 v to show what it will perform while you are in the car with the engine running.
yeah, according to the fosgate website you should be fine, you didn't say which sub you have ( 2ohm or 4ohm ) so, make sure you wire it up right, crutchfield has some easy to understand wiring diagrams on wiring up subs so you put the right ohm load to the sub.