Hey all,   I wanted to fit a new stereo to the Z and browsed the forums and online for a proper guide, but wasn't happy with any of them. They all seemed to be either out of date, or hastily written so didn't cover enough details. Hopefully this guide should patch up those flaws.   It is written showing the install of a Pioneer SPH-DA120 AppRadio, but the basic principles apply for any stereo install.   The cables we will be using will maintain the use of the origin