If you’re uncomfortable with the process, any car audio professional can perform the update for a small fee (typically $30–$50). However, with patience and this guide, you can safely do it yourself and enjoy a more reliable, feature-rich Pioneer experience.
: He turned the ignition to ACC but kept the engine off.
Plug the prepared USB drive into the on the front of the DMH-Z5350BT (not an extension cable or hub).