Hi Ron,
Yep the telescopic version is the best,but you normally have to drill the outside of the van and with it being a 2002 van I personally would not go down that route. Contact Maplins Electronics as they are very helpful and have a vast range of bits and bobs to meet most needs. My CD unit is plugged in via the Status unit and reception on FM is good, but AM is pretty dire,try listining to 909 live football commentry and when the wife switches on the water pump and static rules. If Maplins or the likes do something that is suitable which is located in the van without drilling the exterior be aware of location as vans are renowned as 12v electrics are rarely suppressed against static. A matter of trial and error prior to full aerial installation. As for your two orange and white leads they may both be live, don't worry as all you need to do is wire one to the constant live and one to the accessory live for the cd unit. The constant live is to maintain the tuning memory of the CD and the other to power the unit. Unless you have a constant 12v supply to the van e.g you do not disconnect the battery or the mains you will not lose your tuning presets, but if like me you have to remove the battery while in storage you will lose your presets.
Good Luck
(p.s did you run your aerial lead to the status FM input and was the status switched on)
Rob