Hey guys, I bought a gently used (202K) 97 Escort LX sedan. Somebody upgraded the head unit, but the speakers sound extremely tinny and have no bass at all in them. I'm wanting to replace all 4 speakers, how do I get the door panel off? I found two plastic rivets and successfully got those off, but I'm having trouble with the window crank. I can't find this U clip everyone keeps talking about. But after that, the rest of the panel just pops off, right? And then I lift up and over the plastic lock nubbin? Help would be much appreciated.