Bang on. I had exactly the same problem: - where the steering pinion in correct position in the chassis frame was mis-aligning the cabin-to-chassis location pins. I removed the steering wheel, screwed down the cabin and refit the steering column and wheel. Unfortunately, all the messing around means the steering wheel to column fit is now slack and sadly forces off the horn button when turned. Gluing the shaft to the steering wheel is an option, but will not prevent to centre button from becoming unattached. Although it clicks when pressed, theres also no way of knowing if the horn switch is also affected and potentially not working until we connect the power pack presumably in a later issue. Perhaps a note advising builders of a suggested revised fitting order should be included in future packs.