Hello scottymy son has a2003 neon starts sometimes and no start,battery is new and starter is new ,have power at the relay also and can jump from there,sometimes when it doesnt start i give it a jump real quick and starts up,do you think it could be a grd issue or maybe need to put heavy gauge wire to the stater and grd point

check the ignition switch first, they often get weak and do that. Also have alternator load tested, auto zones do that free