Replacing amp in 09 Camry Premium JBL?

[ben805]

I replaced the front door and dash speakers with DLS UP6i components and they're being fed by eD nine.2x amp(200wx2), the problem is....when I tap the LOC to the front door speakers output from the JBL amp...the tweeters of my components do not work, it looks like the OEM JBL amp have some sort of high-pass filter built-in for the front door speakers, when I tap onto the front dash speakers output from JBL amp I get no sound, also try to tap onto the L and R output from the JBL 6 disc changer (before the amp) and get no sound either.....WTF??

Is there any way to get around this so I can retain the stock JBL HU or do I have to get an aftermarket HU?