Tips on installing a navigation system
Get better GPS performance with these suggestions by Crutchfield's There are two basic types of in-car GPS navigation systems: in-dash and portable. This article will give you some tips on installation considerations for both systems, but focuses on the in-dash systems, since they are more involved. After reading this article, see our Navigation Installation Guide for detailed installation instructions. In-dash Navigation Systems In-dash navigation systems consist of 2 or 3 parts: a car stereo with a built-in screen, an external GPS antenna, and occasionally, a hideaway connection box that contains audio/video inputs and outputs. These navigation systems require some extra wiring connections versus regular in-dash stereos. Parking brake For safety reasons, any video screen in the front of the car must be attached to the parking brake wire. This applies to GPS systems too. Some of the more advanced navigation functions are disabled while the vehi