I was initially having issues with the A329S powering off using a setup that worked just fine for my A129 Duo IR. After some toying around, it works fine for me. I have hardwire kits (not yet installed) for both dashcams, and am waiting on a couple of more items to come in before going to a nearby store that will do the wiring for about $300 (including the rear cam for the A329S).
The problem for me was that I had the USB-A to USB-C cable behind a USB-A extender cable with a switch on it (so I could toggle it on/off) attached to a USB power bank, which I use since my vehicle kills the USB/lighter accessories when the engine is off. (Bank is charged via USB-C and has two USB-A outputs, and the outputs are unaffected when the input status is changed.) Once the extender/switch cable was removed from the equation, the dashcam became a lot more reliable. Got a newer USB-A to C cable (since I was using an old one) and so far I haven't had any power related issues.
When I get the hardwiring installed, there will be two switches/buttons for me to use to turn them on/off. The entire idea is that when I'm home, I can turn them off since I won't need them to do any recording. But when I go somewhere, on they go and parking mode will kick in as needed.
So, @terrorindeed, despite your unusual circumstances, there are definitely ways to make sure that your A329S is working just fine, even if you can't get it working while in the vehicle (just yet). Try a few different power banks that generate at least the minimum amount of amps needed and see how that works. If it can speed charge a phone, it should work, so long as it's not a charging power that needs to negotiate the amount of power being supplied.
The problem for me was that I had the USB-A to USB-C cable behind a USB-A extender cable with a switch on it (so I could toggle it on/off) attached to a USB power bank, which I use since my vehicle kills the USB/lighter accessories when the engine is off. (Bank is charged via USB-C and has two USB-A outputs, and the outputs are unaffected when the input status is changed.) Once the extender/switch cable was removed from the equation, the dashcam became a lot more reliable. Got a newer USB-A to C cable (since I was using an old one) and so far I haven't had any power related issues.
When I get the hardwiring installed, there will be two switches/buttons for me to use to turn them on/off. The entire idea is that when I'm home, I can turn them off since I won't need them to do any recording. But when I go somewhere, on they go and parking mode will kick in as needed.
So, @terrorindeed, despite your unusual circumstances, there are definitely ways to make sure that your A329S is working just fine, even if you can't get it working while in the vehicle (just yet). Try a few different power banks that generate at least the minimum amount of amps needed and see how that works. If it can speed charge a phone, it should work, so long as it's not a charging power that needs to negotiate the amount of power being supplied.