not starting 87 tbi truck? please help!!!

[snacob14]

well, I was working on my truck the other night. I installed some speakers using the original wired going to the rear of hte seat. Now it won't start. it started up that night after I was finished. The next morning...nothing. I needed to replace the tank. so, I replaced the tank, sending unit, pump and fuel filter. Nothing? If I put a cap full of gas in the tbi, it starts right up, but then runs out of fuel. its an 87 short bed tbi 350.

I need some other Ideas. I checked the ground for the pump it seems like its getting a ground, but I don't hear it kick on? should I hear it kick on or not? please send some ideas my way, I really need this thing tomorrow.