Just installed another set of 4 KS680s in an 07 F-150 and once again, they sounded fantastic. this time on a kenwood HU instead of the Factory CD6

they are under 50 bucks and sound wayyyy better than my kappas. they arent the black cone crap speakers, but the gunmetal colored ones.

http://www.hifisoundconnection.com/S...id/0/SFV/30046

id recommend them to anyone upgrading from stock and wanting great sound at a good price.