Sorry for the dumb question but here goes:

I have a D/P tap to 2.1mm cable (pic 3) that I want to use with a V mount plate (pic1) and AB mount plate (pic2). The cable plugs into both, however it is very tight going into pic2 (AB)
Is this ok as long as the + goes to + and the - to -?
I thought D/P taps were close to the same thing.

I have a D/P tap to 2.1mm cable (pic 3) that I want to use with a V mount plate (pic1) and AB mount plate (pic2). The cable plugs into both, however it is very tight going into pic2 (AB)
Is this ok as long as the + goes to + and the - to -?
I thought D/P taps were close to the same thing.