Do you need an antenna adapter if you install a '05 stock becker NAV unit in an '04 crossfire that had a stock non-NAV radio? I sold my NAV unit to a '04 owner and they cannot plug in the antenna wire. Any help is greatly appreciated!

Thanks!

 

Probably!
An antenna adapter was required to install a stock becker nav unit to my crossfire.
the nav unit had a button connector where the stock radio had a long plastic clip type connector.
The adaptor came as part of the nav system along with extra wires to tap into the speed sensor and reverse sensor switch as some cars are not pre-wired for the unit.
My technician said i was lucky that my car was pre-wired as apparently the wiring loom needs to be tapped into and soldered to and is a bit*h!!
You should be able to get the ariel adaptor from your dealer.

 

I bought the stock nav radio for my roadster and it came with an adapter for the antenna.