Stock JBL tweeter mix up

My speakers are trash. At high volume the bass causes the speakers to go into convulsions. I found a great deal on stock replacements and bought all new stock speakers. I knew the rear tweeters had capacitors but didnt think they were built in to the speaker itself. The place I got them from only had the front pairs so I bought two pairs.
Anyone know the rating for this capacitor? The fronts have a hole for the cap to mount in, so I think I can just add my own if I can find the right ones. Or I may just leave the original ones in since they dont sound bad.