Audio Systems: 2005 Grand cherokee front door speakers, grand cherokee limited, 2005 grand cherokee limited

Question
Hi Ernesto,

I own a 2005 grand cherokee limited, trying to upgrade the factory speakers.  I noticed that the 6x9's in the front doors produce only low frequencies - no high end at all so the JBL 6x9's that I purchased will no be utilized properly.  The rear door speakers and the dash tweeters are fine.  

My questions are:  Is the amp in this model (Boston 276 watts) made to supply only woofers for the front doors?  Could the amp be defective on this channel?  is there another channel on the amp I can use?  How do I get to the amp to take a look at it?

Thanks for your help

George

Answer
hi
that is correct the front doors are low freq only ( bass )
but you also have mids and tweters that you can replace for better ones there is not much that you can do at  the amplifiers and there is not settings amplifier was under the rear seat on 2004 vehicles