A:Answeryou don't want to do that each one is better left in the car it was originally put in even if it's the exact same car it varies model to model with wire harnesses and may burn it up
A:Answeryes you can any best buy will do the work for the other if you buy it at one have them order it and do a pick up at the store you want it installed at so there is no confusion make sure any extras are ordered at the same time then also have the pick up date a day or two before the install date and then call the store confirm at everything is there 1st
