Accessory function
08-30-2015, 02:28 PM
#1
Advanced
Thread Starter
Accessory function
I have an '02 C5. When I turn my key to "accessory", should the radio play? I have to turn it to "on" for the radio to play. Is it this way from the factory or has someone rewired it? Having it "on", the dash lights and gauges are on, too, and it's quite a drain on the battery. I'd like to listen to the radio without everything else coming on or having to start it up.
08-30-2015, 02:35 PM
#2
Team Owner
The radio should play in "acc". Is it stock or aftermarket?
Do the wipers and heater fan work in "acc" on yours?
Do the wipers and heater fan work in "acc" on yours?
Last edited by 65GGvert; 08-30-2015 at 02:43 PM.
08-30-2015, 03:11 PM
#3
Administrator
Member Since: Mar 2001
Location: In a parallel universe. Currently own 2014 Stingray Coupe.
Posts: 342,660
Received 19,207 Likes
on
13,924 Posts
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18-'19-
'20-'21-'22-'23-'24
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
Yes, the radio should come on in the ACC position.
08-30-2015, 03:18 PM
#4
Advanced
Thread Starter
I guess he wired to just come on when running.
Thanks for the input. Now I know. I'm thinking about putting an auxiliary battery in the trunk to use for stereo and cigarette light sockets to use USB in lighter socket.
Last edited by sargeter; 08-30-2015 at 03:34 PM. Reason: forgot something
09-01-2015, 02:45 PM
#5
Team Owner
Someone may have moved the constant 12v (for memory and time) to the switched wire to save battery life when sitting for a period of time.
09-01-2015, 03:03 PM
#6
Le Mans Master
It had an aftermarket radio/CD when I bought it. Wipers and windows, work on "acc", just the radio won't.
I guess he wired to just come on when running.
Thanks for the input. Now I know. I'm thinking about putting an auxiliary battery in the trunk to use for stereo and cigarette light sockets to use USB in lighter socket.
I guess he wired to just come on when running.
Thanks for the input. Now I know. I'm thinking about putting an auxiliary battery in the trunk to use for stereo and cigarette light sockets to use USB in lighter socket.
09-01-2015, 03:21 PM
#7
Melting Slicks
That one sounded odd enough that I had to go out and try it: radio yes, wipers yes, heater no. That's on a 2004 with auto A/C...the A/C lights come on but the display/fan doesn't. I guess it vaguely makes sense for the wipers to work in ACC, but I wouldn't have been all that surprised if they didn't.
The RAP function is an odd beast. I went out there half expecting that the radio would not turn on in ACC. It will stay on in ACC, or even OFF (until the key is removed or it times out), but I thought it might require cycling through ON to initialize.
The RAP function is an odd beast. I went out there half expecting that the radio would not turn on in ACC. It will stay on in ACC, or even OFF (until the key is removed or it times out), but I thought it might require cycling through ON to initialize.
09-01-2015, 04:48 PM
#8
Advanced
Thread Starter
stereo
No. Not a big stereo. I just like to sit and listen if I'm in the park or if my wife is inside shopping, I'll sit in the car and listen to music. I have one of those little USB things I can plug in the lighter, too, so I can use USB stuff. I always worry if I'm going to run the battery down too much so I'll start it up every so often. Then there is the wasting gas and the loud mufflers and getting hot while sitting still trying to listen to music.
09-01-2015, 04:54 PM
#9
Le Mans Master
No. Not a big stereo. I just like to sit and listen if I'm in the park or if my wife is inside shopping, I'll sit in the car and listen to music. I have one of those little USB things I can plug in the lighter, too, so I can use USB stuff. I always worry if I'm going to run the battery down too much so I'll start it up every so often. Then there is the wasting gas and the loud mufflers and getting hot while sitting still trying to listen to music.
Last edited by 73Corvette; 09-01-2015 at 05:01 PM.
09-01-2015, 05:12 PM
#10
Le Mans Master
That one sounded odd enough that I had to go out and try it: radio yes, wipers yes, heater no. That's on a 2004 with auto A/C...the A/C lights come on but the display/fan doesn't. I guess it vaguely makes sense for the wipers to work in ACC, but I wouldn't have been all that surprised if they didn't.
The RAP function is an odd beast. I went out there half expecting that the radio would not turn on in ACC. It will stay on in ACC, or even OFF (until the key is removed or it times out), but I thought it might require cycling through ON to initialize.
The RAP function is an odd beast. I went out there half expecting that the radio would not turn on in ACC. It will stay on in ACC, or even OFF (until the key is removed or it times out), but I thought it might require cycling through ON to initialize.
09-01-2015, 07:20 PM
#11
Melting Slicks
At one time there was a device sold that could allow aftermarket audio systems to take advantage of RAP because the device could receive BCM signals and power ON or OFF the after market device based on RAP.
I have not seen that device sold in many years. I have one on my Ipod player interface system (Drive + Play by Harmon Kardon) and it works well.
I have not seen that device sold in many years. I have one on my Ipod player interface system (Drive + Play by Harmon Kardon) and it works well.
I've had it in my car with a Kenwood MP3 receiver for two years now, works great.
09-01-2015, 09:36 PM
#12
Melting Slicks
It also has the level-shifting function so it plays nice with the Bose amp/processor.
