I want to do a quad retrofit setup, but I don't know how I would go about wiring it in so that I can use two ballasts on each side, any help?

 

hmm. noo cluee

 

The best usefull post in history!

 

Just an update for anyone else who may be interested, I asked matt at theretrofitsource.com and he said the following.

"Easy! run 2 relay wire harnesses.

Each harness needs only 1 input, but has 2 outputs - so you can use two of them (plugging one into each side of your original headlight outputs) and then you'll instantly have 4x outputs for ballasts, and 4x outputs for bi-xenon solenoids (if you run a bi-xenon harness of course)

The ONLY thing to watch out for is the side opposite your car battery will probably need the wires going to the + terminal on the battery extended. Otherwise you're good to go."

 

Oh that was you that made that post. I saw that. What car are you doing it on?

Edit, replied on hidplanet.