APISQUEEN 48V-55V 2000W 21kg推力 AQ1121 水中スラスター 内部ローターモーター 内蔵FOC ESC付き ボート、カヤック、インフレータブルボート用

A wiring diagram with pictures would be very useful for the end user.
An explanation why the negative power connection preferably shouldn't be used for connection the negative Pin on the receiver would also be useful. Doing so will work but there are negative effects such as increased noise etc.
The 3-pin DuPont connector from the motor cable may be inseterd in two ways in the receiver. The white cable is the PWM and the black is the negative.
I didn't understand that the motor Mount was included in the scope of supply so I did order an extra motor Mount.
There are two large holes in the motor Mount. Do they have a function? I need to use 3 stainless M6 bolt to attach the Mount on the bottom of my Rotomolded Hobie as there is very difficult to find a flexible glue that will stick to the motor Mount and to Polyetene