Cascadia Solar makes panels specifically for Wranglers. 100 Watts for regular hoods. I've had mine for maybe half a year and it's pretty great.
Only problem is that the cable box from the panel prevents you from folding down the windshield. Really debating taking it apart.
@Cascadia4x4 Please move or flatten the cable location, or at least provide a warning for jeeps so people don't drop their windshield and explode the glass.