Relevant Magazine has an excellent article discussing the relationship between faith and reason in apologetics. The article concludes:
So while apologetics affirms that faith is more than reason, involving trust and relationship, it is not less than reason. Apologetics does not surrender faith on the altar of cultural reasoning or relevance. Rather, it seeks to show that the longings (and rebellion) of humanity as expressed in culture point to our great need for the salvation that only comes by grace through faith in Christ alone. Faith is what grounds apologetics. It trusts that the Bible tells us the truth about God, our condition apart from Him and the way to experience redemption.
Give it a read and let me know what you think.