Speaker Recommendations For 2013 V6?

[Seth Evans]

I'd like to upgrade the Speakers from the Shaker 500. I'm currently trying to decide between these two Stangs, but still can't decide which is better value (Carfax shows an accident for one of them.)

1) http://www.diamondautoexchange.com/2013_Ford_Mustang_Corona_CA_7717906.veh#

2) http://www.freewayautomall.com/pre-owned-cars/detail/2014-Ford-Mustang/103181