If your radio is IDatalink Maestro ready use the SRWH-R8.  If your radio is not Maestro compatible use the SRWH-AUD3-HILO

 The factory radio output is about 6-8 Volts. Most aftermarket radios have a 2-4V output, so the factory amp receives a much lower signal than the factory radio was sending. If your radio has 5V outputs, both our harnesses include the HILO to get better sound out of your new radio. The smaller box is the CAN box. It handles all the steering wheel controls (with a SWCL) without any of the programming problems that some of the competition has especially with the rolling steering wheel controls. The controls supported are Voice dial/Pickup call/Hang up call/ Volume up/Volume down/ song up/song down. The small box also reads the cars CAN-BUS signal and provides switched 12 (turns the radio on and off), illumination (dims the radio when you turn on your lights) Parking brake (tells the radio your parking brake is up to unlock security features), Reverse (tells the radio you are in reverse so that the new radio knows to switch to the reverse screen) and VSS(Vehicle speed sense tells the radio how fast you are going to improve accuracy especially when you lose GPS signal).

The SRWH-R8 adds the iDatalink Maestro features to our SRWH-AUD3-HILO harness.  Our SRWH-R8 harness also incudes our small can bus box to provide the reverse and illumination.  The Maestro box does not read reverse and illumination on all R8’s.  The Steering wheel controls are also quicker and have zero lag because they are transmitted through data on Maestro ready radios.

If you already have a Maestro box or wish to compare the sound with our HILO box we sell the harness without the main box.