I would like to know as well.
I saw Steve's video "Ripped Off bigtime by Scumbag Amazon Customers - the unseen joy of being a businessman" from December 2019 and he talks about marking his Amazon returns down. I don't do social media so I don't follow Steve anywhere, so I don't know if he posts these things.
Steve, if you are reading this can you help us out?
Funny thing about this?
I don't even have a real system in my car to use this with. I want one to help out the guys at work who get stereo shops installs that are not tuned correctly!
Thanks,
Alan