The factory external speakers that I have fitted to the Basestation work well but you can also hear them whilst inside the van.
So when the kids and myself are outside watching a movie or listing to music and my wife wants to be inside and read a book she get annoyed at how she can hear the sound from inside the van.
On the weekend I set about trying to fix this problem. I started by removing the external speakers and that was an effort, It took me about an hour to carefully cut all the silicon away just to remove them.
The right hand speaker goes in the the cupboard above the kitchen sink and is in its own box so you can not see the back of it when you open the cupboard. When I removed the speaker it had at lot of connections behind it (HDMI and RCA plugs) that I taped up and made neater and then pushed the up to the roof and fitted a piece of ply at a lid for the speaker box.
I then used some sound deadener mat and insulation and stuck it to the inside of the box.
The left speaker just went into the over head cupboard where the radio and sat receiver are located and was not fitted in it own box so I just made up a cylinder with the matting and insulation to enclose the space as best as I could.
All the cables I found when I removed the speaker
Tucked them up towards the roof
Made a lid for the speaker box
Lid fitted
I then fitted sound deadener mat
and the some sound insulation
Then refitted the speakers and tested.
The end result with the noise level inside the van was not as good as I would have liked but it is definitely quieter.
Will have to wait and see if my wife complains about noise next time she is in the van.