https://www.google.co.uk/search?q=350Z+power+steering+pump&source=lmns&tbm=vid&bih=679&biw=1243&hl=en&sa=X&ved=2ahUKEwiinrext4eCAxU9cqQEHQoQAU8Q_AUoAnoECAEQAg
Also, worth mentioning, is to leave the main engine loom all hooked up to the engine and disconnect at the ECU and pull in through the firewall.