Adding power locks to 99 GMC

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=21311
Printed Date: July 18, 2025 at 10:31 PM

Topic: Adding power locks to 99 GMC

Posted By: elkie
Subject: Adding power locks to 99 GMC
Date Posted: November 11, 2003 at 2:19 PM

Hey all,

Used your site alot , but first time I ever asked any ?'s. I have a 99 GMC sierra ext cab truck with manual locks/windows. I'm wanting to before christmas get at least power locks in the truck. I see that valiant has a keyless entry system with all parts need for 99 at jcwhitney. Is that a good brand to chose.

If not is there any other kits that come with keyless plus parts to due this?

Thanks in advance!!!

Replies:

Posted By: Velocity Motors
Date Posted: November 11, 2003 at 4:13 PM

You can use universal actuators that are the same quality as those on JC Whittney's site for alot less on eBay. All you need to do it get a set of relays and some actuators and the cost would be about $ 15 - 20.

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Posted By: elkie
Date Posted: November 11, 2003 at 8:15 PM

thanks for the reply!!

Is the only place you can get those are at ebay?

Also how do you hook them up then? I've know A LOT about electrical and such, but you mention relays and such is there any write up on this? Can I just get the two actuators from a junk yard? what do I all need to pick up? just the actuators, or more?

thanks for any and all help you give!!

Posted By: Velocity Motors
Date Posted: November 11, 2003 at 9:55 PM

No, you can get them at alomost any place that sells and installs alarms & remote starter's. It's just the cheapest place that I could think of. If you want to have someone install it and have warranty, then go to a shop. eBay doesn't really give you products with warranty unless it's from a reputable business. Hook up 2 relays likethis: https://www.velocitymotorsport.com/images/install_notes/104.jpg

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Posted By: profuse007
Date Posted: November 11, 2003 at 11:00 PM

dont get them at junkyards, theyre really expensive, 20-40 bucks. they wont sell the actuator alone, they sell it with the latch.

heres one place to get them

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Houston,TX
"The two most common elements in the universe are H+ and stupidity" (Ellison).

Posted By: elkie
Date Posted: November 12, 2003 at 8:38 AM

thanks for all the info !!

And the diagram for the locks, so i would just need to run the wire from the 30 on the relays over to the pass door for them to work as well., How due you hook up a switch to it. and what time of lock/unlock switch can i use, just a basic on from radio shack???

Posted By: elkie
Date Posted: November 13, 2003 at 3:05 PM

? on the diagram. to hooking this up.

There is always a constant 12 power to the relays. but there are 2 different (-) to the relays. one is to lock and the other is to unlock. How would I wire up some time of switch to that? I'm kind of confussed on that part. IWhould I have a switch that had 3 positions on it? push down would unlock, push up lock. and then a constal middle? where would i find these switches.

Also to make this work on the other door would I just need to run wires from replay 30 to each wire on the actuator on the pass door.

Is there any write up/instructions beside this image on setting these up?

Thanks!!!