xr6boosted Member 67 Member For: 12y 9m 21d Gender: Male Location: QLD Posted 10/02/16 06:29 AM Share Posted 10/02/16 06:29 AM Hi All, My BA was sold me with no key for the alarm siren, I've decided to swap it out for a $20 aftermarket siren so I will at least have a siren with a key to it. Just wanting to identify the 3 existing alarm siren wires - black, red and white. Just to make things interesting my new siren has 4 wires - black, red, white and blue. Confirmed as - Ground, 12+ constant, + trigger and - trigger.. I wasn't exactly sure how to make 4 wires go into 3 however I was at least hopeful to match up colours and off I go.. Sounded promising when key fobs chirped the new alarm however as much as I enjoyed the alarm siren sounding to my turning signals I.e. Anytime a blinker illuminated.. Did make people think I was a cop car. Maybe ford wanted to keep people guessing, maybe black is positive in this case who knows. In terms of the 4 into 3 issue my options as far as I can see are (once I know which existing wire does what) to either; 1. wire - trigger into earth, or 2. wire + trigger into positive constant. Good times. Link to comment Share on other sites More sharing options...
Lennox Member 2,586 Member For: 11y 8m 22d Gender: Male Location: Perth Posted 10/02/16 07:45 AM Share Posted 10/02/16 07:45 AM Just use a multimeter to test? Test continuity to chassis to find the earth... and DC voltage to find trigger/power feed.. Link to comment Share on other sites More sharing options...
Stockies Member 68 Member For: 11y 9m 30d Gender: Male Location: Vic Posted 12/02/16 01:19 AM Share Posted 12/02/16 01:19 AM The aftermarket siren will only use a positive or negative trigger, not both Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now