Boombox Bluetooth mods

I have a JVC RV-NB1 Kaboom Series Boombox and want to mod it with a "Decoder Board USB/TF/ Reader IR Remote Bluetooth/FM Audio Board Module MP3". "Bluetoothing" this box is easy but installing this module involves a bit more ie. usb, TF slot, aux, FM. IR for remote any ideas as to connecting the rest. I can't seem to find a schematic from JVC. It has an FM tuner and can decode mp3,WAV,CDA,FLAC. CD's.Plus I want to add either a LiPo 4200mAh battery or a transformer for charging the module.any ideas would be greatly appreciated.
Chuck Reed

Picture of Boombox Bluetooth mods
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