The aux in is for 07's. We have a auxin plug in the tray of our trucks. GOOD NEWS!!! I know the wiring scheme for the aux plug. Buy a set of RCA's and cut them in half. Strip the wires back and solder together.

Aux-in R (+) - Pin 6 on C290B - Orange
Aux-in L (+) - Pin 7 on C290B - Red
Aux-in L (-) - Pin 8 on C290B - White
Aux-in R (-) - Pin 14 on C290B - Pink

 

Can you be more specific here. Will this work with the Z2.

 

It will work for any HU. with an aux in in mini plug or Aux in RCA's.

For the first one. Buy a RCA to mini. and cut off RCA's before L/R come together.

For the RCA in Buy a set of RCA's (good ones are the best) and cut in half.