Quote:
Originally Posted by WaltPA
Well, the "Accessory Enable" is really simply switched 12v power, and that's the power that is maintained 'on' after the vehicle is turned 'off', and until the driver's door is opened. Lots of things are powered off of that, including the windows and the sun roof. I doubt that the adding the Bluetooth kit to it, will effect anything. Matter of fact, I actually "tapped" into it, at the sun roof fuse since I don't have a sun roof. I figured that there was a circuit designed to supply up to 20 amps, but wasn't being used.
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Correct! The reason I was giving a warning here was that I had a friend that wired a trailer light controller that needed a constant on and an ignition source for the +12. He used the retained accessory line for the ignition source. He later had a problem with his trailer lights that damaged his controller and caused a feedback of power from the battery to the retained accessory line this caused his accessories to stay on until his battery died. So not knowing your hands free kit but knowing that there are other design problems with it......
To be safe I'd put a low amperage fuse (just higher then the hands free kits rating) in line with the constant power source it will protect your battery and vehicle if you do get a power feed back to the accessory enable. This should already be done in the hands free kit but unless you see an inline fuse holder you might want to add it