Bleach for relaxed hair?

As you all probably know my hair is relaxed. I have been dying just to go a warm color of blonde, like between golden honey - golden blonde. I have been to a couple of hair salons who tell me its not possiable to lighten up with a relaxer in my hair, and then I have others who tell me it may be possiable to do it through highlights. My natural color is dark brown, but right now I have a couple of blonde and brown highlights in my hair. I am becoming bored of the current color and want to achieve my golden blonde color. My question is, Is there a any type of hair lightner that is relaxer friendly such as bleach with no ammonia that will get my hair that bright? Is it impossiable to get my hair bright because I have a relaxer? I go to a professional they have put a little bleach in my hair to get  some of the blonde hightlights on it now cool thing is he didn't have to leave it on longer than 6 min. My hair is in a healthy condition. Please help me! I will appreciate anyones help on this.