As I recall, Leatherique's site does refer to their cleaners as being suitable for vinyl/Tex also. The only thing I'm not sure of is whether the dye can work on Tex; a phone call or Email should be able to get you the info.
'97 SL500, 40th anniversary edition
'04 Olds Bravada (SWMBO's)
'06 Lexus ES330
'89 560SL (sold)
SL--Anything else is just a Mercedes.
(Kudos to whoever said it first)