Review on 📟 12V IR Wireless Receiver ON/Off Relay Switch with LED Indicators - YWBL-WH Infrared Remote Control Module 1CH by Heather Bell

Should be easy. I have 12V DC (red/black wire). The blue (+)/white (-) connector connects to a 3/8" mono plug. This plug connects to a 12V trigger on the panamax to turn the panamax on and off (for the audio system). The relay is powered by a click and a second LED is turned on and off with the remote control. But there is no panamax control. The multimeter shows no output voltage (blue/white). I only want 12VDC in and 12VDC out with on/off by remote.The seller doesn't give any wiring instructions despite asking twice.He just said to return it if it doesn't work for me.I bought an RF controlled relay that connects the same way and works great (https://www.amazon.com/gp/product/B07P4DZ2JT/) I just want to get an IR controlled relay that works so my Harmony remote can control it Just like it does with the HF -Relay looks like I need the system with using a remote, then use Harmony to control the system from there. Not the worst of the problem, but it's annoying to lose a remote solution.