Have wiring Qs for new stereo on my 79SA
12-25-09, 04:56 PM
#1
Have wiring Qs for new stereo on my 79SA
IS the ignition on a blue wire w/ black stripe in the stero dash wiring area.
It gives me proper voltage w/ ign key on, but it bleeds down by about .01v a second slowly from the proper 12v or so when ign is in to near 0v after a few mins.
And what is the wire for the antenna? Is that a red w/ green stripe?
Does the antenna even have a power on wire? Or does it just come up when the stero is powered (i.e. senses something in the wiring and not directly wired).
Oh, btw car is a very early 79 SA,
merry xmas!!!
Oh ok, so removed the neg batt cable, and its still ticking down by .01v/sec.....Some sorta capacitor attached to this wire I assume.
It gives me proper voltage w/ ign key on, but it bleeds down by about .01v a second slowly from the proper 12v or so when ign is in to near 0v after a few mins.
And what is the wire for the antenna? Is that a red w/ green stripe?
Does the antenna even have a power on wire? Or does it just come up when the stero is powered (i.e. senses something in the wiring and not directly wired).
Oh, btw car is a very early 79 SA,
merry xmas!!!
Oh ok, so removed the neg batt cable, and its still ticking down by .01v/sec.....Some sorta capacitor attached to this wire I assume.
12-25-09, 05:08 PM
#2
Banned. I got OWNED!!!
Join Date: Nov 2009
Location: Waycross Ga
Posts: 565
Likes: 0
Received 0 Likes
on
0 Posts
IS the ignition on a blue wire w/ black stripe in the stero dash wiring area.
It gives me proper voltage w/ ign key on, but it bleeds down by about .01v a second slowly from the proper 12v or so when ign is in to near 0v after a few mins.
And what is the wire for the antenna? Is that a red w/ green stripe?
Does the antenna even have a power on wire? Or does it just come up when the stero is powered (i.e. senses something in the wiring and not directly wired).
Oh, btw car is a very early 79 SA,
merry xmas!!!
Oh ok, so removed the neg batt cable, and its still ticking down by .01v/sec.....Some sorta capacitor attached to this wire I assume.
It gives me proper voltage w/ ign key on, but it bleeds down by about .01v a second slowly from the proper 12v or so when ign is in to near 0v after a few mins.
And what is the wire for the antenna? Is that a red w/ green stripe?
Does the antenna even have a power on wire? Or does it just come up when the stero is powered (i.e. senses something in the wiring and not directly wired).
Oh, btw car is a very early 79 SA,
merry xmas!!!
Oh ok, so removed the neg batt cable, and its still ticking down by .01v/sec.....Some sorta capacitor attached to this wire I assume.
12-25-09, 05:36 PM
#3
Stock harness has already been previously modified for aftermarket hadunit and A/C switch.
No longer stock.
Is totally wired besides the ACC wire.
Only require clarification of what is up w/ the slow Voltage bleeddown and if my nice new headunit is safe while receiving 6v and 3v a few minutes after its off.....I have no seen this wire hit 0v yet......
will this kill my batteria?
-Ben Martin
No longer stock.
Is totally wired besides the ACC wire.
Only require clarification of what is up w/ the slow Voltage bleeddown and if my nice new headunit is safe while receiving 6v and 3v a few minutes after its off.....I have no seen this wire hit 0v yet......
will this kill my batteria?
-Ben Martin
12-25-09, 05:46 PM
#4
Banned. I got OWNED!!!
Join Date: Nov 2009
Location: Waycross Ga
Posts: 565
Likes: 0
Received 0 Likes
on
0 Posts
Stock harness has already been previously modified for aftermarket hadunit and A/C switch.
No longer stock.
Is totally wired besides the ACC wire.
Only require clarification of what is up w/ the slow Voltage bleeddown and if my nice new headunit is safe while receiving 6v and 3v a few minutes after its off.....I have no seen this wire hit 0v yet......
will this kill my batteria?
-Ben Martin
No longer stock.
Is totally wired besides the ACC wire.
Only require clarification of what is up w/ the slow Voltage bleeddown and if my nice new headunit is safe while receiving 6v and 3v a few minutes after its off.....I have no seen this wire hit 0v yet......
will this kill my batteria?
-Ben Martin
12-25-09, 06:20 PM
#5
Metal Refinisher
iTrader: (1)
Join Date: Jan 2005
Location: Texas
Posts: 174
Likes: 0
Received 0 Likes
on
0 Posts
1979 Mazda RX7 Car Audio Wiring Guide
Car Radio Battery Constant 12v+ Wire: Blue/Red
Car Radio Accessory Switched 12v+ Wire: Red/Black
Car Radio Ground Wire: Chassis
Car Radio Illumination Wire: Blue/White
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 4″
Car Audio Front Speakers Location: Kick Panels
Left Front Speaker Positive Wire (+): Blue/Red
Left Front Speaker Negative Wire (-): Blue/Yellow
Right Front Speaker Positive Wire (+): Blue
Right Front Speaker Negative Wire (-): Blue/White
Car Audio Rear Speakers Size: 6 1/2″
Car Audio Rear Speakers Location: Side Panels
Left Rear Speaker Positive Wire (+): Blue/Red
Left Rear Speaker Negative Wire (-): Blue/Green
Right Rear Speaker Positive Wire (+): Blue/White
Right Rear Speaker Negative Wire (-): Blue/Green
That what it should be. However if someones changed stuff it may nolonger be correct. Ign and Acc wires can sometimes bleed off but on this early of a car I doubt that it would do this.
Car Radio Battery Constant 12v+ Wire: Blue/Red
Car Radio Accessory Switched 12v+ Wire: Red/Black
Car Radio Ground Wire: Chassis
Car Radio Illumination Wire: Blue/White
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 4″
Car Audio Front Speakers Location: Kick Panels
Left Front Speaker Positive Wire (+): Blue/Red
Left Front Speaker Negative Wire (-): Blue/Yellow
Right Front Speaker Positive Wire (+): Blue
Right Front Speaker Negative Wire (-): Blue/White
Car Audio Rear Speakers Size: 6 1/2″
Car Audio Rear Speakers Location: Side Panels
Left Rear Speaker Positive Wire (+): Blue/Red
Left Rear Speaker Negative Wire (-): Blue/Green
Right Rear Speaker Positive Wire (+): Blue/White
Right Rear Speaker Negative Wire (-): Blue/Green
That what it should be. However if someones changed stuff it may nolonger be correct. Ign and Acc wires can sometimes bleed off but on this early of a car I doubt that it would do this.
12-27-09, 01:52 AM
#7
1979 Mazda RX7 Car Audio Wiring Guide
Car Radio Battery Constant 12v+ Wire: Blue/Red
Car Radio Accessory Switched 12v+ Wire: Red/Black
Car Radio Ground Wire: Chassis
Car Radio Illumination Wire: Blue/White
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 4″
Car Audio Front Speakers Location: Kick Panels
Left Front Speaker Positive Wire (+): Blue/Red
Left Front Speaker Negative Wire (-): Blue/Yellow
Right Front Speaker Positive Wire (+): Blue
Right Front Speaker Negative Wire (-): Blue/White
Car Audio Rear Speakers Size: 6 1/2″
Car Audio Rear Speakers Location: Side Panels
Left Rear Speaker Positive Wire (+): Blue/Red
Left Rear Speaker Negative Wire (-): Blue/Green
Right Rear Speaker Positive Wire (+): Blue/White
Right Rear Speaker Negative Wire (-): Blue/Green
That what it should be. However if someones changed stuff it may nolonger be correct. Ign and Acc wires can sometimes bleed off but on this early of a car I doubt that it would do this.
Car Radio Battery Constant 12v+ Wire: Blue/Red
Car Radio Accessory Switched 12v+ Wire: Red/Black
Car Radio Ground Wire: Chassis
Car Radio Illumination Wire: Blue/White
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 4″
Car Audio Front Speakers Location: Kick Panels
Left Front Speaker Positive Wire (+): Blue/Red
Left Front Speaker Negative Wire (-): Blue/Yellow
Right Front Speaker Positive Wire (+): Blue
Right Front Speaker Negative Wire (-): Blue/White
Car Audio Rear Speakers Size: 6 1/2″
Car Audio Rear Speakers Location: Side Panels
Left Rear Speaker Positive Wire (+): Blue/Red
Left Rear Speaker Negative Wire (-): Blue/Green
Right Rear Speaker Positive Wire (+): Blue/White
Right Rear Speaker Negative Wire (-): Blue/Green
That what it should be. However if someones changed stuff it may nolonger be correct. Ign and Acc wires can sometimes bleed off but on this early of a car I doubt that it would do this.
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post
