Hi all,
I've been working on the "sound system" over the weekend so I can play songs and sound files from the Kelly's Heroes movie. This will probably seem a bit crude to all you guys that have Elmod Blasters, but here goes.
My MP3 player is called the Kube, for obvious reasons, but my reason for using it is its 25mm cube size.

It stores MP3 files on a micro SD card, but only has earphone output, and tests in the past have shown that it needs amplification and a higher wattage speaker to make itself heard.
The idea is that at the start of a "session", I turn it on and pause it, then use a servo to remotely operate the play/pause button, using the rotary knob on my Futaba 7C
I used a combination of amplifier and potentiometer from Maplin again,looking for something that would fit into the ever decreasing space at the rear of the lower hull.

As I didn't want to connect this into the Tamiya speaker for fear of damaging the MF unit, I had to find speakers small enough so I could use two, one for each system.
These came from rcTank-de and are 15W units measuring only 50mm square by 30mm deep.

I started by making a holder for the Kube from pvc sheet, and fixed into place along with the servo

Once wired up, the amp unit just sits on the floor of the lower hull.

As the amp needs a power supply, I connected to the battery and used a small double pole rocker switch to Isolate when not in use.

I fixed the speakers on the upper hull, below the engine intake grille and used Deans connectors for easier removal of the upper hull.

Finally, to hide it all, I fixed black speaker cloth to the underside of the engine grille.

I will try to make a little video over the next few days.
Next mission is to find something to make the Loudspeaker from, I've been looking in cake decoration shops for a wedding bell, but havn't found one the right size yet.
BFN

Hey man....I just ride 'em, I dunno what makes 'em work.
Woof woof woof !