The hull interiors took a major rework.
First, the Rx-14 board did smoke (again! It's the 2nd RX-14 I smoke out!) when I connected everything. Again the motor fets... burn burn.

40 minutes to change the Rx-14 with a more reliable (for me!) Rx-13.

I removed the smoke generator to make room for a bigger speaker Blitz sent me, which improves by itself the overall sound. But I also wanted to test an additional 6W amplifier I took from Thomas Benedini. That thing makes the Heng Long ROAR!

So, I removed the smoker switch and closed the side hull window, moved the main switch and volume knob under the driver's hatch (which I cut open and hinged), together with an on-board recharge plug.

The 6W amplifier needs its own power connection, which I put after the main switch. Also added an additional heasink, cut from an aluminium sheet.

The additional sound card is between the gearboxes, the internal coil antenna in the back.

Additional connections were required for the muzzle flash led (connected to 2 pins on the HL board): I preferred to remove the original asiatam's muzzle red led (operated with the led stick) to use a white led operated through the 'K' button. Since the left stick function will be connected to the 'K' function through a micro into the transmitter, I will be able to either shoot with full muzzle flash, recoil and IR (left stick) or with just a quick flash+IR (K button alone).

Another connection is a negative wire from the recoil unit, which is used by a micro to automatically move the barrel back into position after the recoil.

Then add the IR led and the DBC-DBU connection and you have the wire mess you see in the picture. I really had to proceed carefully when I screwed the top and bottom hull together, and drop a prayer when later testing the turret rotation!
But the tests went fine, and the battle system interaction at close range too (against my DBC equipped Panzer III).

Now i just have to modifify the transmitter to make the tank fully operational.