I cant get to my back plugs, what do I do? on 2004 Kia Amanti

I have replaced the front 3 spark plugs in my 04/ Kia Amanti, traced the wires and they leed some where in the back where to I dont know. How do I get to the other plugs, where are they located.

Asked by for the 2004 Kia Amanti
well, you did the really easy plugs. now, you'll get a
butt whipping. you have to take off the intake manifold
to get to the rear plugs. 2.7 hours labor is the shop time. this is NOT an easy job; good luck!