I am looking at eather the D3 or Z2 to relpace my GM factory Nav. I have a 2005 Trailblazer EXT with the BOSE sound system and rear seat entertainment system.
Question:
Is thier a wiring harness or kit what will enable the stering wheel controls?
I have the OEM XM radio. I understand I will need to replace it. What about using the existing vehicle antennas?
Also want to retain the ONSTAR.....
I guess the point is I just want the new features of the D3 or Z2, but want to keep as much GM factory as possible...
Many thanks
Ed
