I have a 1998 Ford Ranger. I just purchased a Parrot LS3200LS. I found I need the BT1771 adapter and was trying to see how it coonects to the Ford wiring. Looking at the picture of the adapter I can not tell where all the connectors go. I see one for the radio, one back to the dash and one for the LS300 but there is one more conncector on the adapter I don't know where it belongs. Also wil this work as advertised? Auto mute and through the speakers? Thank you Pete