It can be hard to increase the value of a car. For the most part, the vehicle is just going to fall in value from the moment that you drive it off of the lot. However, if you want to keep the resale value as high as possible, you may want to consider adding some things to it that would be impossible to get in the stock version.
For example, why not add a new car stereo and a set of speakers. The speakers that you get in a stock car are notoriously bad because the dealers just put in the worst ones that they can get, opting to save money instead of giving people a good product. They are probably functional, but no one who loves music would say that they are good. The speaker system probably also lacks any subwoofers, which are more expensive than standard speakers and, therefore, are usually left out. This is one of the biggest areas in which a stock car will be lacking, so updating it is sure to raise the value of your vehicle.
At the same time, you are making your car unique. It might look just like all of the other ones from the outside, but it has something that no other used car on the market will probably have. If a buyer is looking for a good speaker system, your car may be the only option for him, which can also help to make it worth a bit more.
