I'm having speaker issues

[discoman]

I had my engine replaced about a month ago due to the motor locking down, while it was in the shop I had them remove the propane conversion and disable the switch.
Now I have my truck back and I noticed that I have no sound on the driver side of my truck except the small speaker in the middle of the door panel. What could have caused this?

 

[Tony Starks]

check your wiring harness in your head unit. maybe the wires to the speakers shorted out in the HU. Hope that helps man

 

[orangeastre]

The 6.5" may have come disconnected, a broken wire in the harness, or possibly the speaker may have just gone bad. More than likely nothing the shop did, just unlucky timing.