Audio Systems: 1996 Chrysler Town and Country LXI, chrysler town and country, aftermarket stereo

Question
Hi.  I have the Infinity Acoustic 10 speaker system in my '96 Town and Country minivan.  When I replaced the original stereo with one purchased and installed at Best Buy, only 4 speakers worked, not all 10 throughout the van.  They told me they did not know how to make all 10 speakers work with an aftermarket stereo.  What do I need to do to get all 10 speakers playing instead of only the 2 in the very front and the 2 in the very back?

Answer
the first thing to do is to go back to Best Buy ( 16 year old kids ) and ask for your money back in full
there is nothing else you need to have all 10 speakers working
they only need to turn on the Infinity amplifiers in the vehicle 1 single wire in the radio harnness  
good luck