Stereo system on my 2007 honda civic has no power?

I had subs in my car and I was taking them out so that I could sell it and ever since them my stereo system hasn't worked. I can't listen to the radio, or a cd. It also doesn't say 'welcome' or show the time. All the other lights on my dashboard work just fine, except for those. At first I thought it was something pertaining to a code, but I don't think that's it. Any ideas?

Check your fuse.
You might have created a short in the wiring when you removed the sub. Check your wiring.