if you go to a good car place you can buy several products that work .back to black is good, amour l think it is do one thats good on leather.vinyl restorer for dash is good but if you put to much on and do not rub it in it goes sticky.if this happens the spray form cleaner removes the acess and helps return it to normal, this may do what you want on its own. good luck
bob, March 2012