Parking Brake Wire

[mattfranz]

I've put in a couple head units before, amps, subs, speakers, etc. But I've never encountered one of these parking brake wires before. I don't really intend on bypassing it I'm just curious where I need to hook it up exactly. I have an 03 Cadillac CTS to be more specific. Thanks in advance for your help!

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[Kangaroux 5,000+ posts]

You don't need to hook it up to anything

 

[fasfocus00 5,000+ posts]

what wiring harness do you have, it may already be on the interface. if no interface than it's a negative trigger.

 

[mattfranz]

I have a Pioneer AVH-100DVD head unit and the wiring harness it came with has the green parking brake wire coming off of it. I have a PAC thing that I am going to use to retain the Bose sound system/OnStar in my car and the door chimes. If I don't hook it to anything than I will not be able to use the DVD system in my car correct?

 

[CSCStang]

Correct. To use it, you have to find the parking brake ground switch and splice it in, or you can use a toggle switch to ground to bypass it.

 

[mattfranz]

I'm having trouble finding the location of it online. How hard is it to bypass?

 

[joey13091]

I'm having trouble finding the location of it online. How hard is it to bypass?

Very easy. With mine I just used a simple toggle switch. If i can remember correctly it was just ground to one end and the parking brake wire to the other. Then when you want to watch a movie, put the DVD in and flip switch back and forth.

 

[mattfranz]

Is there any way that does it automatically without having to flip a switch?

 

[Kangaroux 5,000+ posts]

Is there any way that does it automatically without having to flip a switch?

Yeah, use a relay

 

[mattfranz]

Awesome. Thank you!

 

[fasfocus00 5,000+ posts]

Keep in mind the relay may not work as most new units from pioneer and alpine need either a delayed trigger or a second trigger

 

[CrossoverOre 10+ year member]

its nice to have the manual switch just in case you ever get pulled over you can shut off the video. plus a switch is very easy to do. more so than the other 2 options.

 

[BoomTaco64]

//content.invisioncic.com/y282845/emoticons/iagree.gif.15d6c075ee8d3913ba26866d06993068.gif use the toggle switch to ground. its is the best bet especially with pioneer units..