I followed these directions to interface my iPod into a '96 Delco am/fm cassette. I used this minivox kit to auto sense the signal from the iPod and supply 12v to the Delco to make the input change.
I am Vince and this is my personal website. I am a computer programmer working in local search with TrueLocal. At home I use a mac but I live and breath .Net at work. The name filbar is an adaption of the acronym fubar (Fucked Up Beyond All Recognition). I did something exceptionally odd one day and my friend Clayton said, "that's filbar!" Somehow the name stuck and, mother of all surprises, the domain was available.
Not sure what year your Delco unit is, but here's a hack to add line inputs and use a 12v signal in to trigger the radio/tape relay.
http://home.hiwaay.net/~davida1/radio.htm
I followed these directions to interface my iPod into a '96 Delco am/fm cassette. I used this minivox kit to auto sense the signal from the iPod and supply 12v to the Delco to make the input change.
http://store.qkits.com/moreinfo.cfm/QK126