New member here, does anyone know how warranties work.
I just bought a 2009 Cobalt LT Coupe, I want to put my 18's on, and switch out the rear and front speakers, head unit, and put my amp/cap/subs in. If I were to switch them out would this lose the warranty, or would I need to have like Best Buy or another company do the install. Also does anyone know how the Infinity Kappa speakers sound. My friends trying to get me to go with them. Or what door and rear speakers sound great. Thanks in advance to any help.