3) Rear Entertainment Systems – 10 years ago rear entertainment systems were all the rage. These systems are expensive, over-priced, and can get your vehicle broken into if you’re in the wrong place at the wrong time.
The less expensive alternative is the iPad, tablet, or smartphone. They’re more flexible, do not require DVDs, and can be used with headphones also. However, you should be aware if you leave a device left out in the open and unattended, it’s an easy way to get your window busted out of your vehicle.
4) In-Vehicle Wireless Systems – Although this is a very enticing feature for our internet-driven teenagers, it can be a very pricey way to link multiple devices to the internet on weekend road trips. Some automakers offer accessories and wireless routers for as much as $450 or more, not including the charge for installation and monthly data packages.
A better, much cheaper, the option is to contact your mobile carrier and look into a mobile hot spot device. Some smartphones already have the option available. This option also provides usability outside the vehicle.