09+ Navigation Unit in 08?

[Powerstroke Man 6.4]

So what's needed, Im thinking about doing this if possible.

Don't really need the sync or GPS to work.

Regular radio and the stock AUX input is fine.

Will the basic functions work without all the sync modules/wiring or does it need it?

Truck has the stock audiophile system, rear DVD player, factory sub.

Thanks.