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==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

==Disadvantages==

* 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

==Options==

===Replace cassette player with after-market headunit===

===Replace EMV with after-market dual DIN unit===

===Add AUX input and connect eg an ipod===

===Add DVD player through AUX input===

===Add after-market headunit through AUX input===

===Install a car-PC, either as a replacement for EMV or using the EMV's TV-input as a display===

===modifications to operate other devices through touch-screen===

====Example====

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