thanks guys, i will research it.....
RIAZ - yer, i replied to the post, sorry i had no credit left, as i said above the guy ran off, and i was selling it to my mate (the whole stereo), but as the cars still for sale, ill keep it, but if i can sell the car, (without stereo) ill try and work something out for ya....
just had everything planned out for this week, with buyng the s13 and puttin vertex on it for 1200, but i guess it wotn happen, oh well ill just try and find another one, as the s13 i was gettin has now been sold....