A:AnswerMay need an adapter, According to our database, here are the speakers types that go in your HYUNDAI ELANTRA GT [Amplified] 2014 car, along with their location: Front: 6-3/4" Rear: 6-3/4" Front door: 6-3/4"
A:AnswerThank you for your inquiry. The JBL website have an application that tells whether or not our speakers are compatible with certain vehicles. Unfortunately I wasn't able to find your vehicle within the application to provide a definitive answer. However, if the speaker mounting location in your car meets the dimensions of the GX602, it may fit with slight modification.
A:AnswerYes. According to the data we have the GX602 would fit your car. NOTE: After-market car speakers will require little or no modification for installation.
A:AnswerUnfortunately, the JBL GX602 car audio speakers would not fit your 2001 Toyota Sequoia Sedan. Please refer to link http://www.jbl.com/carfitguidelanding?makeYear=2001&sessionDataChange=true&yearid=2001&categoryId=car-audio&fitGuidePlace=category&fitguideResults=false for the compatible speakers that would fit your car.