hey, this looks kinda cool
http://images.highperformancepontiac.com/features/0512pon_05z+1998_Pontiac_Trans_Am+Interior_View_St eering_Wheel.jpg
thats the interior on 4th gen Ls1 cats, and the cup holder actually is nice, holds the drinks in good.
maybe u can get one on ebay for cheap, cut the cup holder part out, and mold into the existing one u have.