I'm in Orlando, Fl, I checked my battery terminals and they're good, I may pull the battery and take it to autozone to have it tested but it's fairly new, it's never been run empty, I bought it for my old 300d back in November.

As far as the previous owner all I know is it's some kid from Valdosta GA, who swapped the stock airbox for a hot air intake, took out the headliner, and had zip tied the ignition switch to underneath the dash.
i crashed my car and bought this car as a replacement, I'm not ruling out any possibilities with this car.

When I turn the car on the gp light turns on and turns off after a few secs like it's supposed to, but after doing it a few times I'll get a buzzing sound from the gp relay that sounds like the freakin thing is dying.

I noticed that sound when I tried jumping the starter with the 1st and 3rd wire in that small box on the pass fenderwell, I'd hear a click and then that buzz.

i'm waiting for my mechanic to call me back to see what he thinks.