gmpisawresome
Junior Member
I just bought a Kenwood 9903s and have it wired up and working. However, there is hissing in the accessory ignition position and a lot of very noticeable buzzing when turned to the on position. I have grounded the radio to both the stock harness and the chassis. Interesting thing is I hear a relay switch when going from on to acc, and the intense hissing immediately stops once you that relay switches. I have the jbl premium sound system in this Toyota Celica, so I have 4 rcas coming out if the harness and into my radio. What should I do?