New HU and exisiting bluetooth

I am contemplating putting my old HU in my SG 200 after getting fed-up with it being too quiet.
I have a bluetooth system installed already (factory fitted) where my phone will automatically play music through the standard HU, so, will this continue to work if i put an aftermarket HU in?

thanks

dave
 
Surely if i already have a parrot system included, it should work. I'm sure the standard HU wouldnt have that feature built in?


Semantics, it sounded like you were suggesting replacing everything with JUST a new HU. But if the parrot unit is seperate to the HU and compatible with the new one then yes.