DaveCarter Posted January 18, 2009 Report Share Posted January 18, 2009 Anyone know if a 2003 CTS Nav unit can be made to work in a 2003 Seville that only came with the standard Radio/CD/Cassette? Link to comment Share on other sites More sharing options...
chazglenn3 Posted January 19, 2009 Report Share Posted January 19, 2009 I'm pretty sure that the only factory nav that will work is the Seville or Deville units. And they aren't plug and play. There is extensive wiring harness modifications that are required. Jason on this forum sells the modded harness or the unit and harness. Charles Link to comment Share on other sites More sharing options...
DaveCarter Posted January 19, 2009 Author Report Share Posted January 19, 2009 Thanks Charles Link to comment Share on other sites More sharing options...
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