Connect iPOD to Blaupunkt TravelPilot

[WillemS]

Can anybody help me if there is a trick to connect an iPOD to a 4 yrs old Blaupunkt TravelPilot car radio. At the back the radio has connections to connect a 5-CD box. Can any of those connections be use to put my iPDO through the car radio, e.g. by using the 5-CD box wires - but which wires, and how do you trick the radio to play it. There are more necction points at the back, so may be there are other options. Any help?

Thanks,
Willem