GMC Envoy 2006 how to locate and replace #4 ignition coil?

For the I6 engine......It goes in order, #1 is nearest to th front of the engine, #6 is at the firewall.

Need to take off the plastic resonator on the top of the engine. When this is done, count 4 cylinders fron the front of the engine. You're looking at 6 coils, no plug wires or anything. Take the electrical connection off first of #4 then remove the 2 screws. Pull straight up and remove the coil. Replace in reverse order.