Trailor wiring from 4 way to 7 way round plug?

Question

I am wondering, without an adapter. How do I hook up a 4 wire trailer wiring to a round 7 way plug for my truck (2007 F150 FX4)?
I know green is R/turn and yellow is L/turn. Brown is running lights and white is ground.
I hook these up to the round plug and all works good until I hit the breaks and all lights shut down. How do I fix this?

My mistake, turn signals don't work either. Only running lights and they shut down when brakes are applied.

ok, I take it that...
trailer wire................plug end color
yellow>>>>>>>>>>>>red
green>>>>>>>>>>>>brown
brown>>>>>>>>>>>>green
white>>>>>>>>>>>>>white
thx

Answer 1

http://www.marksrv.com/wiring.htm
http://www.etrailer.com/faq/wiring.aspx
http://www.accessconnect.com/trailer_wiring_diagram.htm
Does your truck have separate turn and stop lights? if so, you may need a converter.

Answer 2

Try the following website: www.trailerwiring.com and search for your vehicle and then select one of the parts for wiring a 4-7 there is a link offering a diagram.

Answer 3

green is normally ground . do you have the wiring diagram for it