It has been a long time since I put one in but if I rember right there was a filter too put on the alternator , one on the fuel pump and I think there was one on the air compressor. If you do not put them on you will have problems the one on the 1500 alternator goes on the maine post and goes to ground it is a capasitor. Herbie [email protected]Just installed a new Honda CB on my 08 Goldwing. With the CB on I am getting a very loud eng/alternator noise in my headset. Any suggestions? I called the dealer and they had none.