I’ve just tried to install my britax seats In my new car, it’s technically a seven seater because the boot has mini seats (Audi q7) there’s a big gap between the britax car seat and the seats of the car, they recline and I’ve pulled the recline (on the Audi) right up- firstly is this safe? I think they care in the middle recline position, this made the gap a bit smaller, but there’s still a gap and it worries me. These days there isn’t even a nice person at mother care I could ask. Do Halfords offer advice on this- it would be cheeky as I’m not buying anything. Help mum set! Tried installation videos but they don’t seem to help. Pic for reference