Please answer in the way they follow ty.
Background: washed my car the other day then decided to readjuat my headlights. When I shut the hood something sound different like something dell but I didn't see anything. Then I took it for a drive and engine light came on. The code was p0715. I have a automatic 2004 Chrysler crossfire coupé.

1.)how long of a dipstick do I need to make?
2.) What type of transmission fluid should I use.
3.) Its probably q faulty speed sensor, where is that located.
4.) Location of connector plate?

Please answer these. I've been searching the forum and its getting frustrating now.thanks.