I took apart my door panels today to upgrade my speakers to Alpine type S, only to realize the previous owner had upgraded to infinity kappas all around the doors. I assume he removed the amp to them because it was pre-wired in the trunk and dynomat was on the old plate.

Here's the problem i realized the front are a component set, but there's no sight of the crossover in the door or the tweeter. The stock tweeter is still there on the dash when i checked. Thus i believe the component is being fed power directly from the headunit with no crossover or tweeter...

1. Am i losing quality like this?

2. Any way i can order just the crossover & tweeters?

3. Would i notice a huge difference if i was too amp all my interior speakers?

Front door: Infinity Kappa 60.7cs
Rear door: Infinity Kappa 63.7i
Rear deck : deleted
Sub: Infinity Kappa Perfect 10.1 w/ amp


any help would be appreciated.. thanks!