I heard that a gauge pod with full instrumentation is a direct bolt in upgrade. In other words, all the wiring is already in place for full instuments, regardless of what your truck came with from the factory. Is this true?
An instrument cluster with tach uses the same wiring as one without. All 98~00 Ranger clusters should be plug and play in your 99 with full functionality of the gauges and the indicator lights. 95~97 and 2001~2003 Ranger clusters should bolt in but some indicator lights may not work correctly as is.