yeah what the title says really guys,any help is appreciated 
need to know what head unit you have before anyone can help
if you have a double din unit then you wont be able to fit it in a mk2 punto without a lot of modification to the dash
if its a single din then you have to get a fascia plate for it
no its just the mass of wires alot of people have problems with it you need to tuck them in to the corners as much as possible to make space
some people have bent wire coat hangers so they can poke it up through from under the dash and pull the wires down as you push the head unit in
Some OE headunits (don't know if this is the case with Mk2's) have a support bracket behind the headunit. Have a look in there and see if there is anything like that which can be removed.
ok cheers buddy might go and give it a go nowWell the player itself should have come with a cage, which will attach to the fascia, and then you slide the player into that and - when it's far enough back - it'll lock into place, so no worries of it sliding too far back.