Help With Amp For Sub?

Personally I would wire it 2 ohm. This will allow the amp and speaker to work more efficiently. You will get more output at 2 Ohm. To answer your question yes that combination will be fine.
 
The stock radio isn't the worst thing I've heard but its very underwhelming. Audio is usually one of my first mods. I'm slowly trying to turn it into a racecar.