So i bought this car about a week ago got a good deal on it, the day i bought it i put new breaks and tires on it then 3 days ago replaced the MAF sensor but now i am having a problem i cant figure out. when i open the door sometimes the cd player flickers for a second (not when i close it but when i open it ) and the lights dim little bit like there might be a short. it is a 1997 gtp i checked the alternator and replaced the battery does anyone have any suggestions i have some subs ready to hook up but i want to fix any problems before i do