“I need a ballpark figure before purchasing... I have a 2016 Toyota Tacoma SR. I have power door locks, but I can only control them inside the vehicle because I don't have a fob; I have an "h-key". Question #1: If I purchase this product, what additional components will I need, and how much ballpark figure am I looking at? Question #2: If I purchased Avatal Model 4103 with Xpresskit Dball2 Interface Module from Directed Electronics, can you install it for me and what will be the ballpark figure? Thanks.”