here are trim level and engines they come with for 6th gen civics.
some info might be wrong or missing. please feel free to add them.
all civics come with antenna regardless if they dont have stereo

6th gen

CX: base model. No a/c, p/s, stereo. No power anything. Added tilt
Steering (2000). 5 sp. D16y7 106 hp. Hatch only

DX: same as CX. Added tilt steering and stereo. P/S on sedan; and
coupes (auto). 5 sp or auto. D16y7 106 hp. Hatch sedan and coupe

LX: has a/c, p/s, stereo, tach, cruise, center armrest, tilt steering,
power everything. 5 sp or auto. D16y7 106 hp. Sedan only

VP (98-00): same as LX. Added cd player and keyless entry. Auto only.
D16y7 106 hp. Sedan only

HX: same as LX. Added alloy wheels. 5 sp or CVT. D16y5 115 hp vtec-e.
Coupe only. Economical purpose

EX: same as HX. Added keyless entry, cd player (99-00), color mirror
And side molding. Abs (sedan). 5 sp or auto. D16y8 127 hp vtec. Sedan and coupe

GX: same as LX. Run on natural gas. Auto and CVT. Sedan only. Fleet purpose

SI (99-00): same as EX. Added rear disc brakes, cd player, alloy wheels, SI
badge cluster. 5 sp only. B16a2 160 DOCH VTEC. Coupe only.

In 1999-2000, the civic a facelift. This include new front end and new center
Console, making room for double-din