Stock bose no nav bad reception
 

I have a 04 350z roadster with bose 6 cd with no nave. I get reception but not all the stations are crisp and clear. I know there is a antenna amplifier but I dont know where its located or how I would test it. Any one have any advice on how to trouble shoot it. Thanks in advance

Please do not double post. If people are interested or have an answer to the original post, they will respond when life isn't in the way.