[autoavia]

The wires go in from the top of the guide and there should be a grub screw which locks the wire and the braid together.
 
 You will need to adjust the loop of wire between the front axle and guide to find a length which will allow the guide full movement but doesn't foul on the body and stop the guide returning to the centre. 
The video in the link might help. The car in the video uses the earlier Slotit design where the wires are attached by push in ferrules but the way the wires are routed and set up is exactly the same as your car.

https://www.youtube.com/watch?v=CPOtggPA-qE

Hope this helps. The Nissan is a great car once you have got the guide and pod set up for the type of track that you use.