I have the bose unit in my 03 h2....if i buy the navigation head unit....will it plug directly into my harness?

 

it should, but you will need the GPS antenna that goes in the dash.

I just happen to have both a bose NAV radio and the GPS antenna that I have removed. if you are interested let me know. I have the NAV disk and two working copies. this unit and GPS antenna came out of my 2005 H2

once installed, your dealer will have to unlock the radio security lock out and allow the carr to read the GPS.

 

You will also need to tap the VSS wire in the speedo cluster and run it to the NAV/ Radio connector. I did this same install on my 03 and I love it.

 

the factory nav unit may or may not work in your H2 it depends on the type of amp in your car. there are class2 and non class2 models, research before you buy