I have an 06 F150, with base stereo system (no sub).

Does my truck have a factory amp anywhere or not?? I know some cars have a factory amp located under the seat or some place.

I already replaced my speakers and want to upgrade my head unit, just want to make sure there are no issues with a factory amp in the system.

Thanks.

 

Yup - it's in the HU

 

Only the audiophile systems (the ones with the factory sub) have an external amp. You should have no issues with swapping in a new head unit.