I have a 1996 FZJ80. I just decided to replace the factory stereo (it worked perfectly except for the LCD being broken) with a new stereo. This is the one I got: https://a.co/d/5Agumlg I also got a Metra 70-1761 wiring harness. After wiring everything up, the audio was super quiet and only the front dash speakers seem to work. Currently the blue power antenna wire is disconnected, which I saw should be done from a Crutchfield page. Even with it the audio is bad. I’ve seen some stuff about bypassing the amp. Is that the problem here?