Possible wiring problem with my car?
I'm having a problem with my 2004 saturn. First, the keyless entry would not work, so I went in with the key. Then the engine would not turn on, (the rest of the car worked, radio, interior light, and headlights), then somebody came to give it a jump start and the engine was running again. But the entire way home my speedometer was not working and stuck at 0 and my check engine light has been on. Also the trunk open button on the inside of the car does not work. Is this just a wiring problem? I cannot figure it out.