If you have installed an Ripspeed dv720 in car DVD player and you want to allow your passengers to watch music or movies on a DVD, while your drive your vehicle, then you will need to bypass the handbrake wire, also know as the parking wire. You will have to bypass it, so then the in car DVD player thinks that the handbrake is positioned upwards and you have parked up. If you have connected the handbrake wire, how the manufacturer told you to, by connecting it to the handbrake switch, that is the correct method, however when you are driving it won't play DVD's. This is because the law don't want you to get distracted, while you are driving because your eyes won't be watching the road, as you will be focused on the screen, instead of focusing on the road and you are very likely to cause an accident.
(This guide provided to you below also works with most in car dvd player head units brands, including the ones made by Alpine, Clarion, Kenwood and Pioneer)
1) Switch off the car's ignition off, so the power to the head unit is turned off, allowing you to work with wires safely.
2) OK, First of all you will need to remove the head unit from the vehicle's single din slot. So remove the plastic trim that goes around it, by clipping it off on each side, it will them come off and then place it to one side. Then you will need to remove the deck from the mounting cage, this is by inserting an flat head screwdriver into each sides, to pry it out of the mounting cage.
3) Then grip the front of the head unit with both hands holding it firmly and pull it out slowly. You can now access the wiring harness and find the handbrake wire. Then cut off the wire that is leading down the car to the handbrake switch, using a 'wire cutter' or use a pair of handy scissors, as you won't be needing it.
4) Once it is cut, then locate the parking wire that is connected into the wiring harness plug, it will be a pink colour thin gauge wire and will usually have an small label attached onto it saying it is an handbrake cable. But if you bought the stereo secondhand then it might not have an label, as it might be faded or torn off.
5) Using a 'wire stripper' remove about 1cm of plastic insulation coating off the pink wire. Then connect that wire to the black wire, which is the ground for the head unit, found on the wiring harness, that is connected to the vehicle's metal chassis. This is by twisting the pink wire's copper braid with the braid from the black wire, firmly together to make an secure connection. When you're done, then tape it up using electrical insulation tape, to prevent the wires touching other wires and causing a short. So now that you have set up the wiring, it will trick the in car DVD player, to think that the handbrake is positioned up, allowing it to play DVDs when driving.
6) Place the radio back into the din slot, push all the wires back and push it forward, so it goes all the way down into the mounting cage and locks in. Then replace the plastic trim, by placing it around the front panel and pushing it down until it clicks.
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