Navigation Installed in '04
Installing a Becker Infinity Navigation unit we found that the '04 Coupe was already prewired and we did not have to splice any wires at the amplifier. That made the job much faster.
The '04 was purchased new and never had a GPS unit in it. GPS does not appear as an option on the '04's in my papers.
An adapter for the radio aerial and a GPS antennae was all that was needed.
BlueCoupe's '05 had to have the additional wiring added, go figure.