To hook up the parking/foot brake feature correctly, exactly where do these 2 wires get spliced in at?

And please don't tell me that I have to run that wire all the way to the brake lamp!

Here's some reference pics...

from Alpine manual


e-brake connector


taillight connector

 

isn't there some wires behind the SJB that runs to the parking brake lamp and regular brake lamp, i think that is all that is needed but do you really have to have that, isn't there away to make the system think the brake is on?

 

Bill- its hard to tell from the scan, but are the inputs on the Alpine a positive or negative input? If they are negative, it should be relatively easy to send a grounded (common) input to the wires- just looking at the p-brake connector I bet that's what they're doing from the factory.

Do you have a volt/ohm meter??

 

Yes, got a voltmeter. Problem is, on this new generation Alpine, it looks like there's some wierd sequence switch built in and simply grounding either (or both) wires won't do anything.

To activate the video screen (DVD), you have to be stopped with the foot on the brake pedal, then cycle the e-brake twice, then take your foot off the brake pedal. See how screwed up this is?

As screwed up as it is, I do want to hook it up as directed with this PITA safety feature intact. Like RD777 mentioned, there must be a common place (SJB, fuse panel, etc) where I can splice into both brake systems. Question remains... what location and which wires?

There has to be guys here that are not using the video bypass thingie.. or maybe not!

 

Well I'm picturing myself doing a connection right at the brake pedal switch and then a momentary toggle switch in a readily accessible location for the p-brake connection- but that's just me

On a side note, is this the same Alpine unit you had in the classifieds, or do you have a factory hookup you're not sharing with your brotha-from-anotha-motha here in Hoosier land?

 

It appears as though the Alpine is looking for a 12V positive signal.
When the light for a brake is on it is getting 12 volts from that side.
I do not know anything about how the head unit works, but if you attach a wire from a low amp positive line it should think it is from the line going to the light.
The parking brake would be a very low amp line and the brake lights a higher current. That shouldn't matter much, 12v positive line is probably all you need to fake it out.
You will need switches to emulate the brakes.
Test it with a 9v battery (because of low amperage) and see what happens (other side to the head unit's ground).

 

Well I'm picturing myself doing a connection right at the brake pedal switch and then a momentary toggle switch in a readily accessible location for the p-brake connection- but that's just me
A toggle in lieu of pulling up on the e-brake handle? On pulling the handle, it only will have to engage it slightly, only enough to activate the switch.
Interesting idea though.
I recall seeing toggle switches that are custom made/fitted to our cupholders. Recall seeing that Tom? That might be pretty cool, especially if I decide to wire up a rear cam the same way.


On a side note, is this the same Alpine unit you had in the classifieds, or do you have a factory hookup you're not sharing with your brotha-from-anotha-brotha here in Hoosier land?
Yup, same one. My original plan was to sell it and get a 1-pc DS. Then I figured, why not just get both?
Yeah, got a 'in' over at Alpine, but he's extremely limited in the number of employee purchases per year (or so he tells me ).

 

Yep that's my idea regarding the momentary toggle- you apply the foot brake thus sending the first signal: while you're pressing the brake pedal in, you toggle the switch twice thus sending the 2nd needed signal, then release the brake pedal.

I'm envisioning a momentary toggle, but really any switch would do... I think maybe you're referring to the Speed of Sound switch panel which would work too: http://speedofsoundllc.com/05%2B%20switch%20panels.html

 

Okay, you confused the heck out of me, karman!

This is a video bypass that commonly sells on ebay, but it's not really what I'm looking to do, cheat the system.

What does sound interesting is conviently locating a couple switches in lieu of the whole step and pull up on brake thing. Or, is that in essence bypassing the safety feature?

 

I think you're on to something Tom..

I'll go ahead with the install this weekend, but I won't splice in those 2 wires until I decide about doing the switch thing. I may as well get the rear cam while I'm at it, heck, it's only money!

I do like the front cupholder opening and 3 switches in back configuration.

 

Well I guess it would, technically, be by-passing the safety feature. But I won't tell anyone... as long as you stop driving and talking on the cell simultaneously too LOL!

 

Oh one more thing Bill- I saw one of those SOS cupholder switch plates in person at a big car show several weeks ago- they do look very very nice IMO. I am thrilled with my SOS guage pod holder FWIW too.

 

Never!

The tricky part is driving, talking on the cell, and trying to shift at redline!


Good to hear that they're of quality.

I like the SOS pods, if I had a SC.

 

Hey Bill maybe these guys know something.

http://www.tundrasolutions.com/forum...e-wire-bypass/

http://forum.ecoustics.com/bbs/messages/4/159042.html

It's not looking good

 

hmm this is interesting, two switches, turn one on and leave it on then turn the other one on and off twice then i am guessing leave it on and turn the first one off. by joe i think we've got it.

 

Hey, good info- but linking us to a Tundra site???




Just kidding ya, thanks for the input.

 

I think I'm going to put this install on hold until I get the rear camera and video switch box, then see what's all involved in what switches I'll need (if any).

It's bad enough that I'll have to yank the deck back out later this year for the NAV wiring, but I don't want to do it 2 or 3 times between now and then to wire the cam and switch box seperately. I think it's the smart thing to do. (must have patience.. )

 

Alpine has used this process for quite a few years now, really threw us for a loop when they first had this come out. Like others had said mostly all companies process had been to have just an e-brake wire. Our orignal solution was to have two momentary switches wired up with a relay set.
Later PAC came out with a part that is said has many uses, but mostly seems to be used strictly for this. It is the PAC TR7. The best thing to do is to get the part from PAC that wires in, you program a sequence on it, put it behind the dash with the radio and your done. You never have to hit any switches or anything going this route.
Just look on ebay for alpine video bypass
heres a link to one.
http://cgi.ebay.com/ebaymotors/PAC-T...24427941QQrdZ1

 

Just bought it, thanks!

Just need to get the camera and that cool cup holder switch bezel.

 

your welcome, glad I could help