It seems people are genuinely interested in providing practical assistance or just telling me why I can't.
Either way thanks for the input everyone, compared to just being ignored.
Sorry I forgot to note that mine doesn't have that IPOD port, which would have made all this easier.
I guess the other cheapo option is to hardwire an old USB/FM transmitter (1). They read USB flash drives.
Then there is the xcarlink which accepts USB/SD cards(2).