apparently there are 3 different camshaft position sensors avail for the 2004 neon.
one is mounted around the middle of the engine and is held on by 2 bolts.
one is mounted on the top of the cylinder head near the battery and looks like a square and is held on by 4 bolts
one is located by the oil filter and held on by a 2 bolt flange (this is for the turbo engine)
the position and type depends on engine size and v.i.n. number.