Originally Posted by shortride

I think all of the F150 models with the basic factory sound system will have the same speakers and sound quality. The only F150 sound system that I am aware of with different speakers are those that come with the Sony premium sound system. Some don't even like the stock Sony sound systems. Personally I think they sound great but it's like a lot of other things. It's all in the ears of the beholder and what one should expect with a factory sound system in a new F150.

I've change all of the stock speakers in the last 3 F150's since 2004. If Ford was putting high dollar sound systems in their trucks, the guys in the after market stereo business wouldn't be making as much money. Can the stock sound systems be made to sound better? Yes they can, it's just a matter of how much anyone wants to spend.

An STX is not available with a Sony premium sound system as a Platinum F150 has. You would need to go with a totally aftermarket sound system to get anything close.