you should have a small module with 1 wire connected to it sitting at the top of the module rack, but thats not the right connector for it, looks like something connected to the back of the bluetooth module, just looks for pics of the amp,gps,cdchanger and you might spot the one, just reach behind and check after

and you should have a bluetooth module and an amplifier both mounted under the 6-disk changer

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04 black on sapphire 4.8is personally put 90,000kms
fully loaded minus the fold out trunk floor
-20' DUB X10 3 piece rims staggered setup
-LED angel eyes + interior lights + e70 style shifter
-AFE stage 2 intake system
-x-pipe/resonator delete
-UV coat windshield
-rebuilt Pano roof
-dynavin N6
-all front and rear end suspension parts and both front cv shafts replaced
-OEM hitch

And 2007 GSXR750