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no "good" way to do it -
they will always look touched-up -
maybe better - but far from perfect -
if you want to replace just the buttons -
you can find used units on ebay cheap -
just find one with good buttons -
here is a BOSE unit - all the buttons look good -
except the SOURCE button - $71 - or best offer -
http://www.ebay.com/itm/2002-03-04-...9RA-/381180482922?hash=item58c020956a&vxp=mtr
new buttons are available -
but they want "STUPID" money for them - $15 each - plus shipping -
http://corvetteradios.com/corvetteradios_023.htm
pulling the radios out and taking them apart is NOT difficult -