I've bought the fascia adapter for the Panda so I can fit a new head unit, and out of preference I'd like the HU to go in the bottom slot. I've swapped the oddities tray around into the top slot. Just wondering if there's anything in that would restrict me putting a HU in the bottom slot in terms of depth? I popped the factory HU out recently and had a look, remember seeing something there but not sure if it will affect it?