tripelite

I too had the hissing noise on my AVIC-F90BT, even at zero volume, and it was amplified whenever I pressed a button. It was driving me crazy. My installer simply bypassed the factory amp (which involved clipping wires from the harness, and tying and capping them together. I was concerned that the volume would be too low without the amp, but he assured me that the power from the AVIC was enough - and he was right. I can get it as loud as I would ever want it, and it sounds SO much better. I'm extremely pleased - he even removed the factory amp. FWIW, I have a Toyota 4Runner. If any

I just bought an F90BT and XM radio module. I have a 2000 Toyota 4Runner (with a Double DIN), which I'm hoping will not cause any install problems. I'm looking to have it installed professionally - do I need to pick up anything else (harness, dash kit, cage, etc)? While I'm on the topic, does anyone know of a good installer in Los Angeles (preferably on the westside)? Any experiences with Firedog/Circuit City? Please forgive the newbie here - I searched and couldn't find answers. Thanks so much!