Lude Generation

With car electrics not my strong point I need help! The sunroof on my 5 th gen don't work opens with the handle no problem.
Changed the motor for 1 I know works no luck
Changed the switch for 1 I know works nothing
Fuse is ok even changed that
Only thing I haven't looked at yet is relays in footwell is it likely to be them???
Anybody else had this problem any help advice for testing electrics greatly appreciated

Having changed so many bits, you need a multimeter and the service manual now, to check where the feed is getting through to/lost.

It could, for example be that you have 12v feed all the way into the motor, in which case then assuming that the motor is good, it would means your earth is no good. But you won't find that without a multimeter.