I assume you mean you are planning to swap the stock HU for another stock HU of the premium (but non-NAV) variety... This will work fine without any programming. The big thing you will be lacking is the wring for the sub since your vehicle did not come with a stock sub. Behind the HU you need to add the harness for the sub (has the third smaller connector to the HU). This along with the associated power wires need to go all the way back to the stock sub location.