Do you want a Keyless Entry Alert Tone?
Here’s how I got a tone sound when locking and unlocking the Crossfire with the key fob remote for less than $5 and a just a little bit of work!
The short version is that you install a 12 VDC low current ‘tone’ buzzer across the coil of the Remote Keyless Entry Relay. This is the relay that blinks the front & rear signal lights 1 time when the doors are unlocked and 3 times when locked by the remote. The buzzer needs to be installed in parallel with the relay coil, not the relay contacts. If installed across the contacts, it would make noise anytime the lights are on! Not what we want!
Figure 1 attachment is a wiring diagram of the ‘Tone’ Buzzer installation.
I used a Radio Shack Piezo Buzzer (P/N 273-059, Picture 1 attached). It is a very small and gives off a not so loud 2700 Hz tone that is audible, but not obnoxious, and it only consumes 10ma of current (.010 amps). Radio shack has a wide variety this type of buzzer. They give off various sounds at various volumes depending on which one is used. I also, tried a 273-060. It was louder than I wanted and a bit higher in frequency but is also a good choice. Here’s a link to the Radio Shack stuff:
http://www.radioshack.com/family/index.jsp?categoryId=2032266&cp=2032058.2032230
I picked one of the cheap ones at the bottom of the list. It needs to be capable of operating at 12 VDC. I recommend a low current type. Say 50ma or less, just because that’s all I tried, and it will be installed in parallel with the relay coil, not the contacts. Anyway, you could experiment with different sounds to get what you want. I just found that the little cheap one met my needs. See the next post (after SVO's Reply
)for more about the installation with more pictures and diagrams.
Last edited by corfire; Mar 26, 2008 at 10:29 PM.