Accessory Power Gone?
Thread Starter
Burning Brakes
Joined: Jul 2000
Posts: 936
Likes: 13
Accessory Power Gone?
My C5 came back from the stereo shop with the new system installed. It all sounds great, but there are a few remaining issues. I'll schedule it to go back to the shop, but I'm concerned that they won't know what to do since they didn't do it right the first time. Any hints?
1) No more accesory power. Bummer. :nonod:
2) Auto-dimmer function on the deck does not work automatically when headlights come on. Deck's setting is right. :nonod:
3) There is a loud whine coming through the speakers which gets higher frequency as I press on the throttle. When I originally asked them if a power filter would need to be installed with the system, they said the modern equipment doesn't need those anymore. :confused: Well, my ears say different. :nono:
If any of the C5-electronics wizzards here are bored and feeling generous with your advice, I'll pass it along to the guys at the shop when it goes in. Maybe it will keep them from thrashing around trying to figure it out.
Alpine CDA-7894 CD/MP3 Receiver
Rockford Fosgate Power 550X Amplifier
Boston Acoustics 6.5 ProSeries Components (doors - driven by amp)
Alpine S-Series 6.5 Coaxial 2-Way (rear - driven by head)
Kicker CompVR 10" (rear, flush mount, sealed box - driven by amp)
Thanks!
1) No more accesory power. Bummer. :nonod:
2) Auto-dimmer function on the deck does not work automatically when headlights come on. Deck's setting is right. :nonod:
3) There is a loud whine coming through the speakers which gets higher frequency as I press on the throttle. When I originally asked them if a power filter would need to be installed with the system, they said the modern equipment doesn't need those anymore. :confused: Well, my ears say different. :nono:
If any of the C5-electronics wizzards here are bored and feeling generous with your advice, I'll pass it along to the guys at the shop when it goes in. Maybe it will keep them from thrashing around trying to figure it out.
Alpine CDA-7894 CD/MP3 Receiver
Rockford Fosgate Power 550X Amplifier
Boston Acoustics 6.5 ProSeries Components (doors - driven by amp)
Alpine S-Series 6.5 Coaxial 2-Way (rear - driven by head)
Kicker CompVR 10" (rear, flush mount, sealed box - driven by amp)
Thanks!
Safety Car
Joined: Aug 2000
Posts: 4,537
Likes: 84
From: St. Joseph MO
Cruise-In III Veteran
Cruise-In IV Veteran
Re: Accessory Power Gone? (DanC5)
My C5 came back from the stereo shop with the new system installed. It all sounds great, but there are a few remaining issues. I'll schedule it to go back to the shop, but I'm concerned that they won't know what to do since they didn't do it right the first time. Any hints?
1) No more accesory power. Bummer. :nonod:
2) Auto-dimmer function on the deck does not work automatically when headlights come on. Deck's setting is right. :nonod:
3) There is a loud whine coming through the speakers which gets higher frequency as I press on the throttle. When I originally asked them if a power filter would need to be installed with the system, they said the modern equipment doesn't need those anymore. :confused: Well, my ears say different. :nono:
If any of the C5-electronics wizzards here are bored and feeling generous with your advice, I'll pass it along to the guys at the shop when it goes in. Maybe it will keep them from thrashing around trying to figure it out.
Alpine CDA-7894 CD/MP3 Receiver
Rockford Fosgate Power 550X Amplifier
Boston Acoustics 6.5 ProSeries Components (doors - driven by amp)
Alpine S-Series 6.5 Coaxial 2-Way (rear - driven by head)
Kicker CompVR 10" (rear, flush mount, sealed box - driven by amp)
Thanks!
1) No more accesory power. Bummer. :nonod:
2) Auto-dimmer function on the deck does not work automatically when headlights come on. Deck's setting is right. :nonod:
3) There is a loud whine coming through the speakers which gets higher frequency as I press on the throttle. When I originally asked them if a power filter would need to be installed with the system, they said the modern equipment doesn't need those anymore. :confused: Well, my ears say different. :nono:
If any of the C5-electronics wizzards here are bored and feeling generous with your advice, I'll pass it along to the guys at the shop when it goes in. Maybe it will keep them from thrashing around trying to figure it out.
Alpine CDA-7894 CD/MP3 Receiver
Rockford Fosgate Power 550X Amplifier
Boston Acoustics 6.5 ProSeries Components (doors - driven by amp)
Alpine S-Series 6.5 Coaxial 2-Way (rear - driven by head)
Kicker CompVR 10" (rear, flush mount, sealed box - driven by amp)
Thanks!
2) Didn't use this function, however I believe :rolleyes: That there is a wire from the metra harness that works.
3) Check amplifier gain controls aren't all the way up/or close to. Also make sure rca's off the radio are not running in parallel, but at 90 degree's with any power wires.
I'm no expert, but these are all I can recommend :cheers:
Sorry my spelling sucks :confused:
[Modified by JoeyG, 7:36 PM 5/27/2002]
Melting Slicks
Joined: Jan 2000
Posts: 2,306
Likes: 0
From: New Jersey
Re: Accessory Power Gone? (flannel_man)
3) always use a noise suppressor. Any installer knows that :rolleyes:
Melting Slicks
Joined: Sep 2000
Posts: 2,756
Likes: 5
From: Satellite Beach, FL, USA
Re: Accessory Power Gone? (JoeyG)
The whine is probably caused by a ground loop that has been introduced between the HU and the power amp. You must run power and signal grounds seperately so that power currents do not run down the signal ground returns.
The C5 uses Pulse Width Modulation to dim the bulbs in the dash. Your new HU may not like this signal to be fed into it's dimmer input, but you can try. Connect to the bulbs in the AC/heat controller. The dimmer signals come from the BCM.
[Modified by 99HT, 11:16 PM 5/27/2002]
The C5 uses Pulse Width Modulation to dim the bulbs in the dash. Your new HU may not like this signal to be fed into it's dimmer input, but you can try. Connect to the bulbs in the AC/heat controller. The dimmer signals come from the BCM.
[Modified by 99HT, 11:16 PM 5/27/2002]
