PayPal: View Cart PRODUCTS GPS replaces the PaddleWheel speed sensor. All of our products have a 1 year warranty! Airguide™  GPS Retrofit GPS for Medallion™ MDC/MMDC/Speedometers PerfectPass™  Accessories Approx Years: 2002 to present Approx Years: 1998 to 2006 Approx Years: 1975 to 2000 PerfectPass (tm) NL4 NL2 Airglide Make/Year