Q: fuse removed by mechanic due to car wouldn't start after sitting overnght.Now doors,radio,inside lights won't work.He stumped.

Car wouldn't start after sitting overnight. New battery installed. Same. Auto zone checked battery,starter, etc. said must be electrical. Suggested mechanic. He kept overnight and said problem with fuses, and that it was fixed. However, now radio would not work. He then kept for 2 days, and said he could not find problem. He moved a fuse and said at least car would start. So it DOES start now, however my radio, doors, and inside lights, faub do not work. I have been driving it this way for months now, but really missing the radio, and opening my doors with faub. Before this all began, the sliding door on drivers side was acting up, and then stopped working. He did mention it may have a connection?