Leak on PAS

Morning all

For the last month or two I've had to top up my PAS fluid every so often (the steering gets noisy as the fluid runs low).

There's a stain on the drive that roughly corresponds with the driver's side, level with and about 6 inches inboard from the front wheel.

Any ideas as to what might be leaking here? I can't see anything obvious with the bonnet up.

 

Get some engine cleaner and wash it all down, there is no other way to see exactly where it will be coming from, it will clean up dead easy. When clean start it up and turn the steering wheel and you should see if a hose or the box/rack