hello, i have aquestion for you, i saw you good in that ( sorry im french my english is not perfect)
i bought 3 android stereo car (aliexpress) i have a jeep renegade limited with premium sound system (8 speakers and one sub) with these 3 head unit i got zero sound , nothing, but of course they said it is okay it is compatible bla bla.so i sent them the product back ,refund etc...
So last week i bought another chinese head unit, this one is a bit different (plugs) and i got sound this time yessss...but, (there is a but) i only have sound on the right side front door, front dash tweeter, sub, a just a bit in the front fet door, nothing , on the rear left door.
Do you have any idea to solved my problem ?
there is a guy who solved a similar problem here "supturbo" he has now sound in every speakers , but he lost the fade function.