its a cradle, you bluetooth adaptor slides and clicks into the cradle. Have you read the install manual that would of come with it. Its dead easy
If ya still stuck pm me your phone number and i'll talk you through
bought my plate with money left to me from my Gran in her will.
My dad was chuffed to bits with what I had spent it on and thought it was a great idea and he thought it was nice to see it spent on something that would last for ever.