i have infinity kappas in the fronts now im thinking of moving those to the rear and getting the focals up front should i really pay for the install of these speakers seeing as how its 2 screws and push in the connector for the speaker and done! hi fi buys wants 40 bucks for that. The reason i am asking is i was told by the guy that works there that if they are installed buy a focal supplier then i can have them replaced for 3 years if anything goes wrong with the speakers. Do these speakers last a long time? i wont be using a sub or even a amp just the headunit