1998 Blazer LT ELECTRICAL issues

Ok here's the deal and i can't figure it out.
 
98 blazer lt 4wd;
 
Dash lights and gauges and radio go on and off at different times.  I have checked all grounds from my radio and amps and everything is good.  I couple times the car died but would start up again, two times it didn't turn right over but did. 
 
all gauges lights radio flutter on and off making a clicking noise while doing it.
All ground wires are well grounded.
Battery holds charge well and negative is good.
 
 
any other ideas?
 
 
Thanks in advance
 
Brian

Sounds like the ignition switch is on it's way out.

wow, can't believe i didn't think of that....  Thanks
 
Is there any way to test it?  I had a similar problem on my supra but it was the harness, is there a way to test the ign switch to rule out the ign harness?
 
 
Thanks again
 
Brian