Parked Car Ventilation retrofit

[eL_cHe]

Hi, im posting this here again cause i think i did it in the wrong section.

Hi ppl, i have upgraded my 325is with many things, such as 3rd brake light, parking sensors, remote locking, autodipping rearview mirror, etc. The thing is that I would like to have fully features of the 18 button OBC working and am looking for some info on how to get the TIMER function properly working, i mean, i find the stopwatch function useless and would like to wire it to have the parked car ventilation instead.

Any issues out there?

[VMZ]

Where are you from? 3rd brake light, remote locking and auto dip mirror are all standard round here.

I'm sure what you want to do is possible but I can't tell you how. I don't think it would be a simple wire up, it would require a controller board.

The ventilation just circulates hot air... why not just pop the sun roof up?