Hi Kulnet: Thanks for your post.
1) Not included. You will need an add-on cable to use it with the y-split car charging cable:
http://www.buygpsnow.com/add-on-cabl...eiver-575.html
2) I recommend the CM920, which has a tightening ring ball join (works better for both landscape and portrait view vs. the CM931). Please check out a picture of the CM920 here:
http://www.buygpsnow.com/402.html