Let's clarify this further as you seem to be confused.
1. The wires are on one side of the air filter and the throttle body is on the other. Unless you have a hole chewed in your air filter your theory about your car ingesting a mouse has been proven wrong by logic.
2. Your fix to those wires is substandard, to do it properly you'd need a different harness or to solder/heat shrink and maybe replace a few pins in the connector if the wiring isn't long enough to do a proper fix.
Here's a super easy soldering connection, only a heat gun required Heat Shrink Self-Solder Butt Splice Connectors - YouTube
Here's how I would do it. How to Solder Wires Together (Best tips and tricks) - YouTube
3. You appear to be doing something wrong on testing for load. Either you are using the wrong setting/scale or something else is going wrong with how you are doing the test. You should watch this How To Perform a Parasitic Draw Test - EricTheCarGuy - YouTube
4. Testing TAC/VSS/Ignition switch: (sarcastic tone) Go right ahead and just replace all these items three times in a row because as you said you have no extra money and maybe they are all the problem and the wiring isn't the issue. I say three times because then you will have wasted a bunch of money and maybe you'll be open to listening to reason/experience. Occam's razor states: The simplest answer is often the correct answer.
To be 100% clear, my suggestion is to follow the advice we gave you on fixing wiring/testing continuity and move forward from there. Meaning that you do the nearly free stuff and testing to determine the cause of the issues.
