which nav antenna do i use for my 02-04/5 denso nav system? the ones in the devilles and sevilles? i don't trust the part numbers on my parts list for 98-04 sevilles. they only list two numbers. i have an 02 sts. i have long wire with square plug in that connects like it should to the back of the denso nav- the antenna end is the same square plug in. i just need the antenna/gps reciever with the same square plug in. i bought one ant already and it has a smaller round plug in- so if anyone needs one like that i have one. please let me know some part numbers- or at least some place where i can find it. thanks guys.