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Old 03-12-2012, 05:06 PM   #1
GM4WALLS

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Nakamichi IN-DV7 question?

The wiring harness has a pink wire to be hooked to the negative parking brake wire... if I wanted to bypass the security feature, where could I tap into?
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Old 03-12-2012, 09:25 PM   #2
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Not familiar with that specific model. Some models can be bypassed with a simple ground to the back of the stereo.

Others might need a pulse signal, which can be manipulated by using a relay with a toggle switch hooked to a ground. Then you just have to flip the toggle switch a couple of times to simpulate the parking brake is active.
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Old 03-12-2012, 10:34 PM   #3
basicxj

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Alpine is one of the brands that requires pulses on the parking brake connection to bypass video function lock-out...the Alpines with the more complicated bypass interface with both the vehicle's parking brake and the foot brake and require them to both be applied in a sequence to enable video on the monitor (and the PAC TR-7 mimics this sequence nicely out of the box without programming).

If the Nak DVD unit only requires a parking brake connection to enable video, there's a good chance you can put a simple toggle switch in somewhere connected to either +12V or a ground and have the switch simulate an applied parking brake. I couldn't find an online version of the manual to browse through, but you should be able to determine if you need +12V or ground to trigger the parking brake applied state for the HU by where they ask you to tap into the parking brake circuit...if there is no mention of tapping into the service brake and using the brake pedal in conjunction with the parking brake, there's a good chance it is easier to bypass with out requiring a module to trick the head unit for you. If you call Nakamichi support and state it is for marine use (no parking brake available) they may be able to help you out if how to bypass is not obvious.
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Old 03-12-2012, 10:35 PM   #4
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Ground the parking brake wire. It's probably a pink wire, but consult the manual.
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Old 03-13-2012, 04:27 AM   #5
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Quote:
Originally Posted by basicxj View Post
Alpine is one of the brands that requires pulses on the parking brake connection to bypass video function lock-out...the Alpines with the more complicated bypass interface with both the vehicle's parking brake and the foot brake and require them to both be applied in a sequence to enable video on the monitor (and the PAC TR-7 mimics this sequence nicely out of the box without programming).

If the Nak DVD unit only requires a parking brake connection to enable video, there's a good chance you can put a simple toggle switch in somewhere connected to either +12V or a ground and have the switch simulate an applied parking brake. I couldn't find an online version of the manual to browse through, but you should be able to determine if you need +12V or ground to trigger the parking brake applied state for the HU by where they ask you to tap into the parking brake circuit...if there is no mention of tapping into the service brake and using the brake pedal in conjunction with the parking brake, there's a good chance it is easier to bypass with out requiring a module to trick the head unit for you. If you call Nakamichi support and state it is for marine use (no parking brake available) they may be able to help you out if how to bypass is not obvious.
Grea idea!
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Old 03-13-2012, 04:31 PM   #6
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For the record... just wire it to the black ground wire.
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