I think @Teddis is referring to the "beeping" made by the tailgate as it raises and lowers; although it cannot be turned "off," the dealer can lower the volume to zero, thereby achieving the same result.What do you mean by "tailgate volume" ?
I'm pretty sure the "por v-2" is the same as the POR II mentioned in post #3 .What about the icarsoft por v-2? I’m hearing this is the latest updated version. Will this be even better?
If you take your car into a dealer they can turn the beep sound down to zero. In my case it took five minutes at no cost.It is not the tailgate itself that emits the BEEP!, BEEP!, BEEP! sounds, rather they are emitted
when a button is pressed to close the tailgate.
If one knew the location of the speaker, perhaps it could simply be disconnected?