I've replaced the starter on my mk2 to a larger beefy unit as the old one would stick when it got hot. The problem I have is that the solenoid only has 1 terminal for the crank signal but I have the wiring for the wur and 5th injector to fit.* Can I piggy back off the coil for the cranking signal or will the 5th injector cause issues when I boot it when it's cold.