Aftermarket In-Car GPS navigation systems offer the greatest range of solutions from street mapping to the very popular 4WD mapping from HEMA and flexibility for vehicles fitted with a standard single of double DIN slot.
With the introduction of Apple CarPlay and Android Auto the cost has become a lot more affordable. With some units now offering both built in Satellite Navigation as well as smartphone navigation there is now a solution to suit every vehicle and budget.
An aftermarket GPS offers additional features for further integration of technologies like dual-zone entertainment, iPod & iPhone control and reversing camera and auxiliary video inputs.
One of the strengths of an integrated aftermarket GPS navigation unit is the accuracy afforded by the addition of Vehicle Speed Sensors (VSS) and vehicle data collected via can-bus systems where applicable.
While this all sounds a bit high-tech, what it means is that even with temporary loss of satellite data the unit will accurately track your vehicle to ensure it stays up with the flow of traffic.