my right side rear drain was plugged/broken... (located beside the wire/loom/rubber/hinge for the trunklid)
had a huge 2 day rainstorm

got water pooled under the subwoofers and now my amp/radio doesnt turn on when i press the left/volume knob
fuses are ok

looking for part # for the small little hinged cap thing (i tryed to find on realoem) and some info and what i should start checking to diagnose the audio

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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