1994 Jeep Grand Cherokee Laredo review from North America

We bought our 94 JGC Laredo less than a month ago, it is older, but all of a sudden four days ago, we went to go to work, turned the key, and nothing happened. No click, clunk, or grind, just nothing. My boyfriend replaced the battery, starter, relay, positive wire from starter to the battery, ignition switch, checked the alternator, and the neutral safety switch (or PNP). None of the above. Can someone tell me exactly what that leaves for possible problems? It can be jumped with a screwdriver from the battery to the solenoid directly, but that means climbing under the vehicle any time we need to go anywhere! HELP!!

We are at our wits end on this one, he has spent 6 hours a day under that thing for 4 days, both of us missing work, but spending money to fix it and it's still not fixed. I as well sold my 99 Honda Civic DX for this piece of junk b/c we needed 4wd. HUGE mistake! If your considering, Don't DO IT!!!