Continue shopping “PAC(R) – PAC RP4-GM31 RadioPRO4 Radio Replacement Interface for GM Vehicles with GM LAN 29-Bit Databus, RP4-GM31” has been added to your cart. Remove item Thumbnail image Product Price Quantity Subtotal × PAC(R) - PAC RP4-GM31 RadioPRO4 Radio Replacement Interface for GM Vehicles with GM LAN 29-Bit Databus, RP4-GM31 $166.24 PAC(R) - PAC RP4-GM31 RadioPRO4 Radio Replacement Interface for GM Vehicles with GM LAN 29-Bit Databus, RP4-GM31 quantity $166.24 Coupon: Apply coupon Update cart Cart totals Subtotal $166.24 Shipping Free shipping Flat rate: $5.50 Shipping to MA. Change address Country / region: Select a country / region… United States (US) State / County: Select an option… AlabamaAlaskaArizonaArkansasCaliforniaColoradoConnecticutDelawareDistrict Of ColumbiaFloridaGeorgiaHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachusettsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaOhioOklahomaOregonPennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVermontVirginiaWashingtonWest VirginiaWisconsinWyomingArmed Forces (AA)Armed Forces (AE)Armed Forces (AP) City: Postcode / ZIP: Update Tax $0.00 Total $166.24 Proceed to checkout