So I have looked around the web and so on. I found a affordable Keyless entry system for my car. I do have power locks on my car and i just want to add the connivence of the system so i went into my trunk to see if my car had it and compared it to a taurus at the junk yard and I indeed do not have the system so i was going to get the system and mount it in the trunk next to that computer. my question is there power for the unit and can i tap into the wires for the lock unlock for the drivers door at the very least. other than the aftermarket system What else do i need to get this done