new system, 94 buick regal

ok guys  i just hooked up a new system in my car..i ahve a 94 buick regal ,i bought th e wiring harness and installed my radio everything worked fine,but two days later i hooked up my amp and spaeakers and for some reason my woofers worked but my speakers inside my car stopped working.....any suggestios why?new to car audio

I'll give you the obvious answer:  because they're not getting a signal.  Here's a know fact:  when something stops working when you've made a change in the system, it means that something you did while making the change caused the problem.  Work this out, start troubleshooting it.  Find out what you did that stopped sending a signal to the speakers.Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

Do you know if you the speakers have a factory amp hook up.  My regal which is a 2001, does and I had the same problem, but after a few days my speakers started working again.  I do know that a few of the older regals like your 94' do have factory amps. Don't Ask Questions When You Already Know The Answer!!!