I have a 2002 Impala with the integrated CD/Cassette/AM/FM/RDS and Driver Message Center (plus Onstar). My cd player is dying and I want to know if there are any 3rd party replacement options that will let me keep the Driver Message Center (on the radio display). I know various models can be fitted, but would I then lose the capabilities of the message center and be unable to fix the tire pressure message for example?