Stereo Upgrade

specifications of the factory-installed Premium Sound System

The UZZ32 factory-installed audio system is of high quality and offers the following features:

front speakers
rear speakers
subwoofer
cassette player
am/fm radio (Japanese frequency range) with dual in-glass antenna
12-CD stacker
tv-tuner (Japanese spec) with Quad in-glass antenna and diversity circuitry
Digital Signal Processor (DSP)
EMV touch screen is used for software-based control of many functions
hard" controls available for key functions such as On/off/volume, Source selection, Tune/track selection
AUX input, though not standard, could be added as an option
"Balanced audio" for cleaner sound

Tuner requires external frequency shifter (or complex modifications) to work in eg Australia
DSP (and tuner?) are failing with age
CD players are failing with age
no AUX input unless added by factory/dealer/third party
no Bluetooth
no DAB
no audio controls on steering wheel

Requirements:

retention of all existing functionality
no permanent modifications to vehicle
hands free telephone integration via bluetooth
USB input for eg ipod
DAB for better quality radio and/or additional station availability
Line-level output RCA connectors for connection to external amplifier
Support for wired remote control (so that the unit might be mounted out of sight)
AUX input using standard 3.5 mm jack (optional)
Support for wireless remote control (optional but easiest way to achieve steering-wheel mounted controls)
option for displaying

Solution:

Pioneer DEH-X8500DAB
located in trunk (above fuel rank) or under passenger seat?
connected to stock system through "AUX input"
AUX input crested by disconnecting the TV tuner and creating a suitable wiring harness
faceplate (with display and controls) located in convenient location
infrared remote control for "version 1" steering wheel audio controls
custom-designed steering wheel audio controls, installed using the factory fitted mounting points for the telephone control