So lookig at all of the unused connecrors and wires coming off of the radio, should I assume that this four wire Connector is the rear speaker wires? Blue/Blue Black and Blue Blue/Brown.

Anyone know that these connectorws are called?

 

Gray connector Inner fairing - above radio (FLHX/S)
Speaker Left Rear (-)LBE/GY
Speaker Left Rear (+)LBE/O
Speaker Right Rear (+)LBE
Speaker Right Rear (-)LBE/BK

you will have to reflash the radio for 4 speakers.