Stock headunit NON-JBL but I have factory front components???????

OK I'm confused. Been searching for a while to no avail so I'm posting. I see 1000 threads about upgrading the sound system without ditching the factory headunit. Where I get thrown off is, I KNOW I have the non-JBL system, but in my front doors are factory component speakers. I have not seen this in other threads unless I'm just missing something.

Soooo...what I'm trying to do is upgrade the front door component speakers and amplify JUST them (2ch). Later on I'll add a sub with a mono amp I have sitting in my garage. My question is what is the best way to amplify just my 2 front component speakers in my non-JBL system?

Thanks guys

 

The front "components" are just separate drivers that are parallel wired to a single pair going to the head unit. The tweeter has a passive high pass filter on it. You could replace them separately and use a similar configuration or do a true component set with a real crossover network and update the wiring past where it enters the door. If it was me, I'd run new wire from the 2 ch amp to the crossover and then new wire from the crossover to the components. 12-14 ga would be a good size for this application. You could build a splitter harness to break out high level (powered) signal to the amp or do something like a LOC or DSP unit to convert to low level signal and gain some sound control.