I wont be using that 3.5 cable...
I will disassemble both of the devices(HU and the Bluetooth) and figure out a way to connect them to each other by disabling the CD input.
And I will connect the bluetooth adaptor to somewhere which has a 5volt current so I wont need to charge it ever again...
By the way, I have 0 experience with the headunits/stereos but I know if I work on something, I will accomplish