Keyless2Go New Keyless Entry Remote Car Key Fob for Select Mazda 6 Vehicles That Use FCC KPU41805 and Model 41805 This is a brand new replacement key fob remote for 2003-2005 Mazda 6 vehicles. Please check product description below for vehicle fit guide. Your original remote must have FCC ID KPU41805 and model # 41805. Please match both numbers with your original remote prior to purchase, otherwise this remote will not work. A website link to free DIY programming instructions will be provided with every order. Replacement for part numbers: KPU41805, GK2A-67-5RY, 41805 New complete working remote with all electronics and batteries included plus FREE tech support with every order. Every single remote is tested before it is sent to make sure it is transmitting.