5kippy

Hello All, I’m an Audi driver and owner for approx 15years. I have bought several accessories over the years for the different models I have owned. I’m trying to fit old Q5 roof bars “ 09>> “ to newish model 68 reg. I can get the front roof bar to fit but the rear doesn’t seem to want to fit?? Can any one help me understand please if this is never going to work am I able to make it work some how? Many kind regards