2002 Durango will not turn over!

I was installing a remote start unit on my 2002 Durango when my instruments panel went out. Now, when I turn the key everything works but the guages and it will not turn over. I got nothing from turning the key. I removed the alarm but still same problem. Also I can put the truck in gear without the key. I believe this is why my truck will not start but I don't know how to fix this problem and I have no ideal why everything else will work but my guages and read out displays. Any help?