Firstly you wouldnt need a jack!
Follow the service guide, (there is a link on here) apart from ignore when it says remove all the panels all you need to remove is the Sub (if you have one) of if its the other side you just need to remove the access hatch in the rear glove box. the rest is a couple of bolts (only scary bit is depressurising your fuel system by removing a fuse for the fuel pump and then trying to start your car!) - Horrible noise!