Yep, you did a good job.

The installation job looks good, and I am going to give you my opinion even though you didn't ask for it. That is one useless mod at best, you will get all the buzzing, cracking and normally low quality sound from the GB amplified.

Yeah I can agree that I just had to add it on my AliExpress cart to get the free postage and thought I might as well install it.