I bought a factory nav unit to put in my '04 Crossfire. The main harness plugs right in but the antenna lead of all things is different on the nav unit. These are subminiature plugs. On the '04 it plugs in at a right angle and on the '05 nav unit it plugs in straight and deeper in the unit. Anyone else have these problems and what do I need to do. Seems like the simplest thing is the am/fm antenna and that is what is giving me the trouble. A big help to me would be to know if the bigger plug on the radio is the GPS or AM/FM and the smaller plug near the wire harness is it the GPS or AM/FM? Anyone able to help?