Hooking up turn on lead in 05 Grand Prix

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derekmac

Member - Posts: 1

Joined: November 22, 2006

Location: Canada

Posted: November 22, 2006 at 10:39 AM / IP Logged

Where is the best place to hook a remote turn on lead in a 2005 Grand Prix? I have a factory stereo, (not Bose) and I need to run a turn on lead for my amp.

master5

Silver - Posts: 1,123

Joined: October 10, 2006

Location: United States

Posted: November 22, 2006 at 4:01 PM / IP Logged

Ok there are several options.

First off your vehicle has RAP (retained accessory power) which keeps the deck on for a length of time after the key is turned off..or until the door is open. You can simply tap into an accessory wire at the fuse panel or ignition harness but every time you turn the key off you will lose the amp..but the deck will still operate normaly.

If this is an issue for you either try to find the RAP relay (sometimes there is a fuse that will work as well). Use a meter to find it and see if you can tap into a wire that is an RAP, this may take some time and patience unless someone else can post exactly where that is, I do not remember for your vehicle. Remember you can't tap into the rap accessory wire on the deck side directly as it will not have enough output to even energize a relay.

Another option is to purchase a "remote power adaptor"..DEI has one for 11 dollars. What it does is use the audio signal from the speaker wire to provide a remote for an amp. PAC and a few others also make a similar unit. I know PAC makes an adjustable line output converter, which you should need as well, that has a built in remote power adapter wire. It's a bit more expensive if you pay retail but works great.

Good Luck

sparkie

Platinum - Posts: 2,061

Joined: November 06, 2003

Location: Canada

Posted: November 22, 2006 at 4:45 PM / IP Logged

The purple wire in cavity B3 of the large plug is the radio on signal wire. It will trigger your amp.

sparky

master5

Silver - Posts: 1,123

Joined: October 10, 2006

Location: United States

Posted: November 22, 2006 at 5:18 PM / IP Logged

If the purple wire sparkie is talking about is at the radio harness it will not turn on the amp. There is NO accessory wire at the radio in a GM rap vehicle.

The factory radio is controlled by class2 data line and therefore there is no accy voltage at the radio.

Once again it is NOT an accessory wire, it is data and there is a chance to damage the BCM of the vehicle if you mess with it.

There is a way to use a resistor/transistor circuit on that wire but it is much easier and safer to do any of the suggestions I left earlier.

sparkie

Platinum - Posts: 2,061

Joined: November 06, 2003

Location: Canada

Posted: November 22, 2006 at 8:55 PM / IP Logged

Master 5 you are correct about the radio being a Class II unit and uses a data signal from the BCM to turn on but it does have a 12 volt output.The purple wire is the radio on circuit. It is used to turn the antenna module on and the factory amp if equipped. It will only go to 12 volts when both the car and radio are on. Trust me. I specialize in GM systems. It doesn't get much simpler than this. Always use a digital meter to confirm that you are on the correct wire.

sparky

master5

Silver - Posts: 1,123

Joined: October 10, 2006

Location: United States

Posted: November 22, 2006 at 9:29 PM / IP Logged

Ok I will trust you. But here is some info I got on this particular vehicle....

"The bcm is located at the end of the dash with three connectors. I have provided the pinouts.

Pin 23 on connector 1 is switched accy. use a digital multimeter before you touch anything because if things go sour no dealer on the planet will help you with warranty. Trust me I am a manager at a company that has the contract to repair delco electronics. It does not utilize a power ant so no wire is availible. The deck is a non amp unit so no remote."

"The panel directly is under the driver's side dash. Use a relay and connect as follows:

pole 85-ground,pole 86-accy(from connector at bcm), pole 30-+12v battery,
pole 87-to amp turn on connector. This way the amp will turn on and off with the ign key.
And you will not damage any control modules."

Body Control Module (BCM) C1•

52-Way F AMP (BK)

Pin Wire Color Circuit No. Function

1 BK 860 Wiper High Speed Relay Control

2 WH 1459 Security System Sensor Supply Voltage

3 PK 1439 Ignition 1 Voltage

4 BK 28 Horn Relay Control

5 -- -- Not Used

6 BK 707 RAP Relay Control
7 BK/WH 1969 Headlamp High Beam Relay Control

8 D-GN/WH 1317 Fog Lamp Relay Control

9 PK/WH 1970 Headlamp Low Beam Relay Control

10 WH 1080 Park Lamp Relay Control

11 YE 749 Security Indicator Control

12 GY 91 Wiper Relay Control

13 YE 196 Windshield Wiper Motor Park Switch Signal

14 BK 1835 Security System Sensor Low Reference

15 L-GN/BK 1137 DRL Ambient Light Sensor Signal

16 L-GN 526 Stop Lamp Switch Signal

17 BK 1750 Ground

18 -- -- Not Used

19 BK/WH 151 Ground

20 BK 1950 Ground

21 YE 5 Crank Voltage

22 PK 1239 Ignition 1 Voltage

23 BN 1141 Ignition 3 Voltage

24 TN 185 Low Washer Fluid Indicator Signal

25 WH/BK 644 12-Volt Reference

26 PK/BK 109 Hood Ajar Switch Signal

27 GY 598 10-Volt Reference

28 BK 552 Low Reference

29 BN/WH 230 I/P Dimming Return

30 PK 1444 I/P Dimming Control

31 RD/WH 812 I/P Dimming Voltage Reference

32 -- -- Not Used

33 L-GN 5077 Low Reference

34 BN/WH 1571 Traction Control Switch Signal

35 -- -- Not Used

36 PK/BK 1597 Courtesy Lamps Switch On Signal

37 BK/WH 1455 Keyless Entry Program Enable Signal

38 L-GN 1037 BCM Class 2 Serial Data

39 WH 17 Stop Lamp Switch Signal

40 L-GN 80 Key In Ignition Switch Signal

41 L-BU/WH 1314 Left Front Turn Signal Lamp Supply Voltage

42 D-BU/WH 1315 Right Front Turn Signal Lamp Supply Voltage

43 GY/BK 690 Courtesy Lamp Supply Voltage

44 OG 1732 Inadvertent Power Courtesy Lamp

45 -- -- Not Used

46 OG 340 Battery Positive Voltage

47 RD 228 Windshield Washer Pump Control

48 GY 8 Instrument Panel Lamp Supply Voltage

49 D-GN/WH 1135 A/T Shift Lock Control Solenoid Supply Voltage

50 OG 240 Battery Positive Voltage

51 OG 2440 Battery Positive Voltage

52 OG 1240 Battery Positive Voltage

sparkie

Platinum - Posts: 2,061

Joined: November 06, 2003

Location: Canada

Posted: November 23, 2006 at 7:30 PM / IP Logged

You can do it that way, but I would suggest that the amp only be on when the radio is on. Even if the car isn't equipped with an amp, it does have an antenna module. The antenna module is above the headliner at the rear window. It converts the signal from the antenna grid in upper portion of the rear window to an amplified signal sent along the antenna coax to the radio. It is more than capable of driving a relay or an amp remote wire.

sparky

master5

Silver - Posts: 1,123

Joined: October 10, 2006

Location: United States

Posted: November 24, 2006 at 1:11 AM / IP Logged

Thats good to know sparky. Do all the RAP gm's have that type antenna as well? I don't recall ever seeing anything like that on GM's and I do tons of them. When replacing the decks I normally use the dcgm06 or onstar adaptor if equipped and that retains the RAP or, if adding an amp to the factory deck I find the RAP relay wire for remote if not using an amp with auto on or a remote power adaptor.

Thanks

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Hooking up turn on lead in 05 Grand Prix

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