OK, let's go with some basics. Fuses. Those little devils will look perfect and be perfectly bad. Best to actually check to see of you have voltage on the spring tabs they snap into with a voltmeter. Next, ignition switch. contacts in them can yield strange results. If you slowly rotate the keys switch, do you get say radio power in or near the first or second position? Third, hold the key all the way to start and slowly move the shifter. Do this with brake firmly applied. Start by pushing shifter all the way forward and then slowly move it all the way back to second gear. See if you get any action out of the starter anywhere. All of this of course is based on a battery putting out a good 12 or more volts. Just on general principle, bring the battery into a warm garage or such (70 f) and charge it overnight. Check voltage before and after charging. Clean battery terminals and cable ends. Man I hate working in snow.