Jesus Christ...people, you don't have to take more test than Deca. All you need is a minimal TRT dose of test (because Deca will cause complete shutdown almost immediately) and a dopamine agonist. The "deca dick" issues are caused by prolactin, which can easily be trested with Caber, Prami, or Bromo. Yes, the OP went about this all wrong, but to say that "nothing will help, except for test!!!!" is just false. (I'm talking to you, Lexruger)
So once again, OP, the answer to your question is: A DOPAMINE AGONIST (and preferably at least 100mg of test/week, which will not cause any side effects, since it is only replacing what you normally have).