02-07-2021, 11:07 PM
I have the same problem and have found a fix.
I checked the unit's blue antenna power output wire with with a meter and it is only outputting 10.6V instead of 12V like it is supposed to. So instead of using that wire, I connected my car's signal booster to to the same 12V supply that feeds the headunit itself and PRESTO! I get normal radio reception again. The booster is not working properly with 10.6V, it really needs the full 12V.
I have asked another Joying owner to check and he is getting 12V from his antenna output. Since there are several of us here with the same reception problem, I suspect the 10.6V output is a defect with some units.
Anyway connect your car's signal booster to full 12V power and it should fix the problem.
Joying, you may have a design fault here.
I checked the unit's blue antenna power output wire with with a meter and it is only outputting 10.6V instead of 12V like it is supposed to. So instead of using that wire, I connected my car's signal booster to to the same 12V supply that feeds the headunit itself and PRESTO! I get normal radio reception again. The booster is not working properly with 10.6V, it really needs the full 12V.
I have asked another Joying owner to check and he is getting 12V from his antenna output. Since there are several of us here with the same reception problem, I suspect the 10.6V output is a defect with some units.
Anyway connect your car's signal booster to full 12V power and it should fix the problem.
Joying, you may have a design fault here.