2013 volvo 780 cab power

This truck I bought a while back has the legacy tripac apu and the TK inverter. To my surprise the inverter works, outlets on the inverter are good. The cab power though doesn't work. Is there some way to hook these together so I can use the 110v plugs in the truck? When I turn the cab power switch to on, the two outlets on cab power don't provide any power.

 

I read something somewhere about that two male plug c cord or something like that. I have no idea how to use one. Guess theoretically the extension cord should work. I think I only have the 2 110v outlets on the bunk wall anyway. If nothing else I'll get a power strip and just plug it into inverter and leave it laying on the floor of the bunk

 

Looking at the cab power plug it's male. Couldn't I just take that and remove it from outside and pull back in side box and plug into inverter?

 

The male to male cord you mentioned if I'm thinking correctly I'd plug that into the outlet on inverter and then into the outlet on the cab power itself where the GFCI is, right? I'd only need like a 12 inch long cord if so. I assumed those plugs were for power too once it was hooked up to an inverter didn't think until now I could supply the power that way, if I'm right anyway.

 

I might do that. As much as I would like to just buy the cord that is already setup with double male ends, it seems to be a pain to get it because no place seems to have it in stock and would have to wait. On the other hand the inverter is actually closer to the bunk wall where I could plug in a power strip even than running a double male cord from the inverter to the cab power. I may just do that and not even worry about the cab power at all and plug a powerstrip in to the inverter.

As for my APU, I don't believe it does have any electrical outlet that is supplied power by it. it is an older than dirt "legacy" apu. I guess the very first model that was made, with the push button interface in the cab on the sleeper wall.

 

After doing some reading maybe I just string up two regular extension cords rather than use a male to male cord. Seems like those are dangerous, or can be dangerous since one end is going to be powered all the time and if it touches something else it could start a fire. But seems like the same can happen with the other setup too, with two cords plugged together. Then again though I wouldn't be leaving the inverter on just all the time either. I am not sure if that is good to leave them on or only have them on when used. I didn't even know the inverter worked really. Noticed a battery cable wasn't hooked up so I hooked it up to see what it went to and noticed the inverter was on and working.

 

I haven't found any other inverter besides the TK one. There isn't any box or anything outside of the cab or on the chasis near the def tank except for that centrally located cab power plug under the bunk. But there's no telling what either previous owner of the truck could have done with it, Iif there was a factory inverter. I thought the same thing at first, since the cab power was likely put in at the factory. Whoever put the TK inverter in the side box of the bunk used a lot of insulation foam to fill the holes where they ran the battery cables.