capacitor + diode?

hey guys. can anyone help me out with this? i have a mitsubishi eclipse 2001 with angel eyes installed. basically, what i want is to have my angel eyes on when i turn on my parking lights, and at the same time when i lock/unlock/open the doors. i think i have everything wired correctly. problem is that the relay used to convert polarity from dome light (negative trigger to positive output) buzzes whenever i close the door. i read some posts where you recommend using a capacitor+ a diode to avoid the buzzing. above is a diagram showing my setup. could you please tell me where to place the capactor and diode? do i need to add a relay? also, what changes you guys think i should make? thanks in advance and have a great day!!!