add 504m on oem alarm

I got a 2014 Pathfinder Hybrid and I'm trying to install a 504M on it. Want to see if I got the wiring correct.

Red- 12 volts constant

Yellow- Ignition ( Must rest at Ground). Could I use factory arm?

Black- Ground

Blue- What do I connect this to?

Green- Connect to horn with a relay

Wiring info for 2014 Pathfinder:

Factory Alarm Arm     brown -

Left Front Door Trigger     beige -

Ignition     green +

12 Volts     white +

Horn Trigger     red -

You could connect the blue or green from the 504m to the door trigger. No guarantees it won't misbehave, add-on sensors like the 504m weren't intended to be installed on factory alarms. They are designed to plug into aftermarket alarms.

And by misbehaving, if that's the glass break sensor, every time there's a sudden high frequency sound in the car such as the radio, the dome light will activate.

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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.

howie ll wrote:

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And by misbehaving, if that's the glass break sensor, every time there's a sudden high frequency sound in the car such as the radio, the dome light will activate.

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No it just a shock sensor. Similar to the 504K and 504D.

OK then every time you go over a bump unless you isolate with an ignition controlled relay, even then your factory alarm may be Data based which means it won't pick up any triggers.
Absolute waste of time. We've all been there, done that.

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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.

First I made a mistake. I am installing a 504K not the M version.

Just finish connect this.

Wired the Blue to the LF door trigger. With a diode.
Wired the Yellow to Ignition.

The shock sensor LED turns off with the Ignition on which what it needs to do and the LED is on with the Ignition is off.

Tested and working perfectly.

howie ll wrote:

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OK then every time you go over a bump unless you isolate with an ignition controlled relay, even then your factory alarm may be Data based which means it won't pick up any triggers.
Absolute waste of time. We've all been there, done that.

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I'm don't see how this is a waste of time. I just saved a couple hundred dollars and hours of install time. I also get to retain the factory remote start.

Well congratulations on an install well done. You've just upgraded your factory alarm with one of the most annoying, arguably useless sensor types, and arguably why one isn't installed in the OEM alarm.

I find cars with subs passing by and thunder during lightning storms trigger the shock sensor more than thieves tend to do.

I always "forget" to install them with DEI 5X04/6 series, we nearly always add 508d making them irrelevant.

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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.

catback wrote:

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I find cars with subs passing by and thunder during lightning storms trigger the shock sensor more than thieves tend to do.

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I don't have the issue with people and subs. If lighting is setting off your alarm just turn the shock sensor down.

But I rather have the issue of lighting and subs rather then pulling my 200 pound toolbox out of my truck every night.

Please let us know if it works.
Except unless you mounted the shock sensor right next to the toolbox it won't work.
Assuming toolbox is in rear cargo are, try banging on the tailgate.

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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.

lordtie wrote:

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I don't have the issue with people and subs. If lighting is setting off your alarm just turn the shock sensor down.

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And that's the catch 22, if you turn it down enough to not false trigger it's not sensitive enough to do much more than detect crashes.

Unless the toolbox was locked inside the vehicle or the vehicle was locked inside a garage I wouldn't leave a toolbox with valuable tools in the vehicle. I used to work out of my truck and kept two extension ladders on the ladder rack. I locked them to the ladder rack AND parked overnight where they were within my view. Much better than trusting an alarm where only an overly sensitive shock sensor would sense a quiet thief casually sliding/lifting an extension ladder or two off the back.

Probably better off with a rear located 508d or a glass break.

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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.

Best thing to do is to try and beat the security by pinching your own tools putting forth your best effort. It's the only way to properly evaluate a security system.

Been testing it for the past few days. Found no issues at all and its even been storming here so, no thunder is not setting it off.

The shock sensor is mounted under the middle row seats zip ties to the heated seat harness. The siren didn't work out well. The pulse just isn't long enough. I could install a time pulse relay but I was able to locate the factory keyless buzzer. I connected the green wire to this to add the warn away aka light shock feature.

Updated wire information for 504K install:
Yellow to Ignition (Wire must rest at ground)
Black to Ground
Red to 12 volts constant
Green to factory buzzer (If equipped and is optional)
Blue to Door Trigger (Can also use factory hood pin)

If you just want to install a 504D:
Black to Ignition (Wire must rest at ground)
Red to 12 volts constant
Green to factory buzzer (If equipped and is optional)
Blue to Door Trigger (Can also use factory hood pin)