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GR4VXL4 VAUXHALL CORSA 2000-2004 MERIVA 2003-2007 OMEGA 2000-2003 VECTRA 1998-2004 INSTALLATION MANUAL V1.0522 This dash image is a visual representation for display purposes only. The information provided in this document is subject to change without notice due to changes and/or improvements to the product/s.
The GR4VXL4 installation kit allows for the retention of the vehicle’s steering wheel controls and maintains the original aesthetic of the interior when installing a new car stereo. The GR4VXL4 gives you everything you need for a complete install in one box. The components of this kit are compatible for the following vehicles with...
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FITTING GUIDE STEREO REMOVAL 1. Using a set of radio removal keys, insert them into the holes located out toward the edges of the radio. 2. Once done, simply pull the radio out of the dashboard and disconnect all of the wiring. 3.
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FITTING GUIDE STEREO INSTALLATION 1. Take the steering wheel control interface in hand and connect both the 12-way stereo patch lead and the 14-way steering wheel harness connectors to the corresponding sides. 2. Connect the bullet connector from the stereo patch lead to the ‘steering wheel remote input’ on the back of the new stereo.
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STEERING WHEEL CONTROL FUNCTIONALITY Please note: configuration layout may differ dependent on vehicle model. Original Button New Function 1. Right Arrow 1. Track + 2. Left Arrow 2. Track - 3. Volume + 3. Volume + 4. Volume - 4. Volume - 5.
WIRING DIAGRAM 8-Way ISO Connector ISO Connector Connect to connector from vehicle Connect to new stereo Main Wiring Loom Connector [14 Pin] Connect to Interface Box Interface Box Stereo Patch Lead Connector [12 Pin] Connect to Interface Box Stereo Patch Lead Bullet Connector Connect to ‘Steering Wheel Remote Note: Must be connected first, before Input’...
TECHNICAL ASSISTANCE If at any point you experience any problems and need any assistance before, during or after the installation process, please contact us via : Phone: 01420 470 605 E-Mail: help@topvehicletech.com Mon - Fri 9am - 5.30pm GMT If you would like to download a digital copy of this manual, or any other product, then please visit the www.topvehicletech.com website.
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