For those struggling for parking im using the car park at "The BNENC Big Car Booty' (as it is on googlemaps) on Mere Lane, really closs to the ground. A scouse mate of mine told me he parks there. It's a charity place who open their car park for matchdays.
I spoke to them on the phone, gates open at 6pm, they have permit holders but if you arrive early enough anyone can use it, so need to be there early. Its £10 to park there, the car park is shut during the game for security but they open it again at full time until 11pm.