It's been a very long while since I looked at this project, I just got swept up and involved in other things, but now I'm back and keen to get the thing up and running.

I have a sound and smoke kit and have got so far installing it, I need to sort out some wiring and mount a few things in my modifications -
[ul][*] lifted one of the rear engine covers which I intend to hinge somehow;[*] mounted the volume control next to the original aerial post (I drilled out the circular moulding there);[*] finished assembling the metal suspension mounts and arms, which were a little troublesome but it's 95% good and that's OK for my needs;[*] mounted all of the electronics to the underside of the upper hull using dowel rods and very strong Araldite glue;[*] replaced turret turning gearbox;[*] replaced gun firing mechanism;[*] mounted speaker under one of the rear engine grills (removed from it's original plastic housing);
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Still to do -
[ul][*] replace gears to include ones with clutches;[*] find a way to incorporate the smoker unit in the remaining space;[*] work out waterproofing scheme - I have a tube of silicon sealant and some metal to manufacture any cowling I may require;
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At present I am uncertain how to wire up the main on/off switch, see photo; my dilemma is that I wish to also include a charging point so that I don't have to take the battery out or open up the tank (access to the charge point will be via the lifted rear engine cover), I have a wiring diagram and just have to get my head around that, but my basic electronics knowledge is escaping me at the moment! There are two wires coming from the main driver board (in the photo) and I'm not sure how they should be connected up to the switch. Any advice on this would be very helpful