99 chevy blazer radio wont come on.
 

I bought a 99 blazer yesterday,and put in a battery today.
Now No radio power to it.
Clock works fine..

Someone told me about a code to put in..
I hit 2-3 and no code.
I hit 1-4,and sometimes it comes up ---
Not sure what to do from here..
Checked radio fuse on the side of the dash,and its good..

Any advise is appreciated.
Thanks,
Mick

Have you consulted YouTube? I think you search Chevy radio or GM radio and there's a few vids about that. Check it out.