i just need a write up if any knows on how to install hid lights on my 2004 audi a4. i would really appreciate it.

 

dude its real easy. the u have stock halgeons correct. Well if u do the cover on the back of the housing that clips off u will have to drill a hole into that so u can run the wires through there. Then u mount the ballast underneath the light housing there is a spot there where it will kinda fit depending on what kit u have purchased. The u just plug in the wires to there corresponding elements and boosh u got hid. Hollar at me if u need sum more assitance i just installed my hids a couple of days ago so lemme know man i be glad to help

 

let me know too. i would suggest getting some black automotive silicone to seal up the hole that you make so the headlight doesnt get moisture inside it