[Roy in GA]

I am new here and am interested in info for a 2003 Maxima SE 3.5V-6. I am mostly on the BMW boards but I need to help my sister's grand daughter with her car. I have the ETK,TIS,and WDS disks for my BMWs. Are there similar disks for the Maxima and if so where do I find them, ebay etc? Parts, repair, wiring/electrical disks. Thanks for any advice.