1999 V70 base model - speaker upgrade
 

Hi there, I am upgrading the factory system with a Kenwood KDC-X895 head unit and the speakers I am installing are Infinity Kappa 50.9cs 5 1/4" 2-way components for the fronts and Infinity Kappa 60.9cs 6.5" 2-way components for the rear. Both sets come with the 1" tweeters

My question has to do with the rear tweeters located in the "D" pillars of the cargo area. Those tweeters appear to have a very small crossover hardwired...has anyone here reused those or do I simply discard them. I will post a pic so you have a better understanding of what I am speaking of.
Thanks in advance.