KeylessOption Keyless Entry Remote Control Car Key Fob for Mazda RX-8 RX8 KPU41805 Model 41848 Fully tested complete keyless entry remote key fob with a battery installed DIY step by step programming instructions included, fully tested ready to program Compatible with: KPU41805 Model 41848, For Mazda RX-8 04, 05, 06, 07, 08 Please verify vehicle is equipped with factory original keyless entry and match part number to original remote KeylessOption Warranty Card Included with each purchase,This is a replacement part to match the original in form and function