On Sunday I fitted a K & N high performance panel filter and did the airbox mod at the same time. The car feels a lot more responsive for it !I then fitted the installation kit for the Travel Assistant (This is to my 2.2 Direct petrol Signum) and then installed the Travel Assistant. Great, everything works and I'm very pleased with it BUT ........ the base unit slots into the slots in the centre arm rest but it doesn't seem to lock into place. There is vertical movement at the rear and it will pull forward. Trying to take the TA off of the base unit is a regular wrestling match, trying to stop the base unit moving forward as you slide the TA off. Am I missing something here? There were a number of bits in the installation kit that I couldn't find a use for, some of them were bobbin type things. I wonder if these need to be installed somehow in the centre armrest so the base unit locks onto them ????????????? If anyone has experience of this I would greatly appreciate hearing from you.To cap it all, I decided to take the car into a local hand carwash in London Road, Peterborough. Got there around 4-30pm. As I pulled into the place, a blue Signum was just pulling out. I pulled in behind a silver Signum and found myself parked next to another blue Signum !!!!! What's that all about. Driving around the place I only ever see another one every two or three weeks and then there are four of us all in the same place at the same time !! I wondered if I was at the tail end of a local meeting of some sort.Very strange.Graham.