alright i just recently installed a f90 in my pontiac g6 so i was wondering if there was a firmware to download where it will give me the features my stock deck had like low windshield washer fluid, door ajar etc.

I got the dash kit where i get all the chimes and stuff but don't have the warning messages.

Nope, those are not supported at all.

Pioneer would have to add a wire to connect to that sensor.

ok in that case currently i have this dash kit

http://www.crutchfield.com/p_127OS311B/ ... ml?tp=3486

So i was wondering if i switch to this dask kit will i get all the stuff from what i had previously and get all those messages. http://www.crutchfield.com/p_120993303/ ... ml?tp=3486

looks like you would prolly need both, one for the chimes/on-star to work (the audible stuff) and the other with the lcd screen to get the visual part to show.