Dakota Digital supplies a good length of wire for the speedo and tach plugs. It's a good idea to leave as much length as possible in the event you need to pull the gauge panel away from the dash but don't want to disconnect the plugs from the gauges. If it seems like there are a lot of wires for these gauges, it's for good reason. The speedo also houses a turn-indicator light, a million-mile odometer, resettable trip mileage, resettable service mileage, a 0-60 timer, and high-speed recall readouts. The tachometer houses similar readouts as well as the adjustable shift indicator and resettable hour meter.