Accessory Time "on" extension

[Toco]

Anyone know how to extend the accessory time on a Sync3 Connect, without having to start the engine to avoid flattening the battery?

Don't want to fit an extra battery with associated control gear as I already have a high capacity battery fitted.  About one hour would do, after switch off.

Was able to adjust the accessory "time on" period on a Citroen MPV via the diagnostics workshop kit, so presume it's possible on the Connect?

Thanks in advance.

[Paulius55]

You can do this with FORSCAN and an appropriate lead. I reduced the accessory port power-on for my car from the standard 75 minutes to 15 minutes as it kept my dashcam powered up for too long and I ended up with hundreds of videos of my house.