I dont belive that the 2nd (manual) button would cause a problem for this reason. The 2nd button is an electronic switch (correct me if i'm wrong on that one). Thus you could put it anywhere you wanted to in the car. It would be a matter of finding a switch you liked and that would fit where you wanted to put it. then when you changed the shifter taking the wires that run to this switch and running them to the new switch. That way you could still go into the "manual" mode when the new switch compleated the circuit.