Install guide

1.3.2 Plug-and-Play Wiring Harness

This section describes a crucial step that is often overlooked during installation.

The plug and play harness provides all electrical connections to an expensive

electronic device that is likely used and carries no warranty coverage.

The plug-and-play (PNP) harness is the easiest way to connect the majority of the wiring when

replacing a symphony radio. This has two ends that will be referred to as the RNS end and the vehicle

end. The RNS end is the large square “Quad-lock” connector. The vehicle end has four housings that

connect to the four plugs removed from the symphony radio. These PNP harnesses can be purchased

for the specific vehicle requirements of Bose or Non-Bose, telephone or none, and CD changer or none.

It is recommended to purchase the telephone and CD changer options even if the vehicle is not

presently equipped with those modules. This will ensure flexibility for future upgrades.

Verify that each wire of the PNP harness connects the proper pins on each end.

The chart on the next page lists each item and the correct pin assignments for comparison. There are

pictures following the chart that detail the pin numbers listed in the chart. There are also wiring

labels on the top of the RNS-E and Symphony I that list all pins with descriptions. This is an

important step to ensure proper operation of the RNS-E. Many PNP harnesses are assembled with the

Symphony II radios in mind, and there will be a few wiring differences compared to the Symphony I.

Reminder: This document is specific to installations replacing the Symphony I radio. For Symphony II radio

replacements, there is a chart specific to that installation available on the web at www.nsxjr.com

Some connections are made outside the PNP harness, meaning it is only connected to one harness end.

Connect RNS-E Pin B7 to ground if the vehicle is equipped with the BOSE system

Connect RNS-E Pin C2 to the reverse wire installed in Section 1.2.

Connect RNS-E Pin D14 to the large brown single pin connector.

Connect vehicle Pin 10, Connector IV to chassis ground in a convenient location.

Once the PNP harness has been verified for accuracy, connect each vehicle end to the corresponding

plug in the vehicle. Each connector can only be inserted one way to protect against wiring mistakes.

If the vehicle is equipped with the BOSE amplifier and speaker system, the front speaker connector can be

completely removed from the PNP harness. This is RNS-E connector A to vehicle connector II.