11-19-2020, 10:36 AM
I installed the Joying B08J3VNMBX in my Mercedes GL450 and had it on radio while testing the install. All is fine on radio; all speakers work just fine, DSP works perfectly. I also installed two separate amplifiers to be able to take full advantage of the DSP system; one is for the surround and one is for the sub-woofer. Again; everything is perfectly done and the radio sounds excellent on all speakers. All other sources only play out of FR and RR + sub. I changed the wires from one speaker to another to make sure that it's not a speaker/wiring problem and it is NOT. This unit only puts-out sound on all speakers in FM radio mode.Please help. I'm still under the replacement/return period. Also, I totally love the unit and this is my second one; the other one works with no issue.