from the 1990 part book, yes there was a sunroof option:
1 4278 794 1 SUPPORT, Sunroof Opening Drain Trough
2 9421 073 4 SCREW
3 2448 761 4 CLAMP, Drain Hose To Trough
4 4296 034 1 PANEL, Sunroof Glass w/Frame (Bonded)
5 4172 849 1 SEAL, Sunroof (Secondary)
6-12 4467 211 2 HINGE and T-PLATE, (Includes Item #6-12)
6 2 T-PLATE, Serviced In Package #4467211
7 2 GASKET, Serviced In Package #4467211
8 6 GROMMET, Serviced In Package #4467211
9 2 GASKET, Serviced In Package #4467211
10 2 SPACER, Serviced In Package #4467211
11 2 HINGE, Serviced In Package #4467211
12 4 SCREW, Serviced In Package #4467211
13 5207 322 1 T-PLATE, Latch
14 5207 368 1 GASKET, Latch T-Plate
15 4106 872-3 1 HOUSING and LATCH, Sun Roof (Includes Item #15-19)
15 2 SPRING, Serviced In Package #4106872-3
16 2 LATCH, Serviced In Package #4106872-3
17 2 GASKET, Serviced In Package #4106872-3
18 2 HOUSING, Serviced In Package #4106872-3
19 2 SCREW, Serviced In Package #4106872-3
20 1 SCREW, #10-16 x .75" Not Serviced
21 5207 327 1 STRIKER, Latch
22 4341 037 1 GASKET and RETAINER, Adjuster
23 4341 035 1 ADJUSTER, Latch (Includes Items #20-23 & 25-26)
24 6501 140 4 NUT
25 5232 094 1 WASHER, Latch Striker Stop
26 1 SCREW, #8-18 x .75" Not Serviced
27 5232 052 1 GASKET, Latch Adjuster To Trough
28 4 SCREW, Weld, M5 x 15mm (Serviced In Item #31)
29 HANDLE, Tilting Roof Pnl. Riser Control
H808 BX9 1 Black
H808 JD5 1 Quartz
H808 GR8 1 Red
30 6031 171 4 SCREW
31 4341 728 1 PANEL and TROUGH, Outer w/Sunroof (Includes Item #28)
32 4440 798 1 SEAL, Sunroof (Primary)
33 WELT, Sunroof Headliner Opening
H737 JX9 1 Black
H737 GR8 1 Red
H737 JD5 1 Quartz
34 6101 127 4 SCREW
35 5232 050-1 1 GASKET, Hinge Receiver
36 4172 966-7 1 RECEIVER, Hinge (Includes Items #35 & 37)
37 5207 378 4 PLATE, Hinge Receiver
38 1 HEADLINER, (See Group 23)
39 4278 798 2 HOSE, Sunroof Drain Trough Front
40 4278 799 2 HOSE, Sunroof Drain Trough Rear
41 H608 CX7 1 BAG, Stowage (Black)
42 4248 818 4 ANCHOR, Tie-Down Strap To Floor Pan
43 H349 CX9 2 STRAP, Sunroof Stowage Tie-Down
44 8 SCREW, #8-18 x .75" Not Serviced
45 5207 474 2 PIN, Glass Frame Connecting