Ben Soenksen

I just bought a head unit off ebay for $90! But i need to buy a brain! What brain should i buy N1 N2 N3? The unit works...I hooked it up to my buddys n2 brain and everything worked! But i Plan on hooking up my ipod to it! I want something pretty user friendly...I have a jensen now and i like the Ipod format for it but its what you get for the money (junk)!!! lol I saw there are plain old cables on ebay for around $20 bucks! Its not the cheap rca either! What should i do? thank You ben soenksen