Do stock GM steroes have an input for speaker wire or audio composites?

[Zed I]

I'm looking for a cheap solution for plugging in an Ipod in the back of the radio that came with my Chevy Silverado.

Before I take apart the dash, do these stereos typically have
ports to plug in composite wire or exposed speaker wires?
I have an fm transmitter..It works alright but there are problems using it.

 

[paddfoot]

no, buy an fm modulator that transmits from the ipod to a specific station on your radio