Car Stereos: speakers, jeep grand cherokee, jeep owners

Question
We bought a 1995 jeep grand cherokee for our daughter and it has a infinity steroe system - worked fine when she got it but says that all of a sudden the speakers dont work - front or back - she did put in a cassete to play her ipod in and wondering if there is a reset button or something that needs to be reset or any other ideas you have to why the speakers will not work

Answer
Sorry, there is no reset button on those units.  
I recommend you check your fuses to make sure the power supply for the external amplifiers is intact. Check your Jeep owners manual to find out which one runs the amps.
Failing that, you may have take it into you local shop to have it looked at.