Review on 🚗 Premium UNITOPSCI 10.1” Double Din Android Car Stereo: Bluetooth, Backup Camera, Touch Screen, GPS Navigation, WiFi, FM Radio, Mirror Link by Wayne Espinoza

Device When I don't power my amp and rear speakers the output is really really (I mentioned REALLY) weak. I contacted Revain's online help via chat, but they were unable to help me. The wire coming from the head unit wiring harness that remotely feeds either the amplifier or the equalizer is not powered. I figured I could cheat by taking power from a distant antenna cable and managed to get the amp to work. HOWEVER, the signal from the head to the rear speakers is so weak that it is barely noticeable. Revain gave me the manufacturer's email address (in China of course) and more than 24 hours passed with no reply. I'm deep into day 2 and I'm not a happy camper.