INstall NAV System in Base Model

If I buy a HH Navigation/Entertainment/HSD system from a dealer or wreck, can it be installed to replace the JBL and A/C components in the base model?

Also, my HH is the FWD model; would this also be compatible with the NAV system's display of the Hybrid Synergy Drive in operation?

Thanks.

You're better off installing an aftermarket one (even something like the Garmin Blackbox GPS system).

I'm not sure how much it'll cost to add all those in.