iPhone mount for 2007 Infiniti G35 Sedan?

Hello, I just got a 2007 Infiniti G35 Sedan. I want to install an iPhone up to my car. I'm unable to decide between http://www.amazon.com/Arkon-15-Inch-Flexible-Floor-iPhone/dp/B001NRTWE4/ref=pd_cp_cps_0 and http://www.amazon.com/Bracketron-UCH- 101-BL-Universal -Holder-Mount/dp/B001UGMTKC/ref Sr_1_1 =? ie = UTF8 & s = electronics & qid = 1273687279 & sr = 8-1 I would be grateful if someone who used one of these could indicate the advantages and disadvantages of the product. I do not want to harm my car in any way. So, if something requires drilling or something, it is not acceptable to me. Thank you

Take the BL Universal.

iphone hands free car mount – GO-Vz (the hanger is the size of a quarter)