Audio Systems: How to bypass my oem infinity amp in my 2001 jeep grand cherokee limited, jeep grand cherokee, infinity radio

Question
ok so i have an 01 grand cherokee limited with the oem infinity sound system. all the speakers were working fine untill i installed a pioneer cd deck. then after a while the two front tweeters blew and the other speakers arn't as clear as they use to be. i read that the reason is because the amp from my new deck and the oem amp are crossing each other and causing all these problems. how do i fix this problem? how do i bypass the oem amp? and also where is a good site to by the oem tweeters that blew?

Answer
find the factory tweters   
the problem is that the signal from the infinity radio was 1.8 volts 0.8 watts per channel the power comes from the infinity amplifier
the power from the new radio is 4 volts 40 to 50 wats per channel to much for the factory amplifier  
installation was done wrong this needs to be install before the radio

http://soundgate.com/index.php?request=product.details&categoryid=188&productid=...