This part does NOT come with installation instructions. This antenna is compatible with the following Model Numbers: HTR4068, HTR-4068, HTR6068, HTR-6068, RXA1050, RX-A1050, RXA1060, RX-A1060, RXA1070, RX-A1070, RXA2050, RX-A2050, RXA3050, RX-A3050 If your Model Number is NOT listed above, please send a message for assistance in purchasing the correct item.