12 V power souce
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From: COLUMBUS INDIANA
12 V power souce
Where in my 2010 F150 fuse panel can I find the 12V power source that will work only when the truck is running. I'm having issues installing my new HU because the newer trucks don't have a red 12V wire on the factory harness. Im looking to buy a "add a circuit" from Auto zone and get the power from that only when the truck is turned on.
Can anybody help me out with this.
Can anybody help me out with this.
Last edited by chavez1975; Dec 28, 2012 at 07:27 PM.
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From: Chesapeake, VA
Check the wiring diagram for your truck. Now a days the factory installs the same wiring harness in all vehicles and only systems for that trucks configuration. There are many fuse & relay sources that are not used but are powered if a load is attached. Load is what ever you want to install, if the fuse or relay is rated for your power needs.
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From: COLUMBUS INDIANA
So if I choose to go that route of using a "add a circuit" or something similar in a "Not used" power source then that should power up the HU only when the truck is in use?
I'm kind of wire challenged.
I'm kind of wire challenged.
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From: Under the flightpath of old ORD 22R
The base audio control Module has a hot in run / accy lead on it, it is blue.
The is from fuse # 41, which is fed from the accessory delay relay.
The illumination feed is Violet w/ Gray stripe wire
Hot at all times is White w/ red stripe wire ( fuse # 39 )
Hot in start is Gray w/ Violet stripe wire ( fuse # 28 ).
The 2009+ MY, is it hard to find a fuse that is hot in run accessory, as a lot of the fuses are hot at all times, and a FET in the SJB ( aka Smart Junction Box / cab fuse panel ) controls when power is at the circuit.
If you have the premium audio or nav audio control module, that is a different story ( you didn't post what you are changing out ).
The is from fuse # 41, which is fed from the accessory delay relay.
The illumination feed is Violet w/ Gray stripe wire
Hot at all times is White w/ red stripe wire ( fuse # 39 )
Hot in start is Gray w/ Violet stripe wire ( fuse # 28 ).
The 2009+ MY, is it hard to find a fuse that is hot in run accessory, as a lot of the fuses are hot at all times, and a FET in the SJB ( aka Smart Junction Box / cab fuse panel ) controls when power is at the circuit.
If you have the premium audio or nav audio control module, that is a different story ( you didn't post what you are changing out ).
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From: COLUMBUS INDIANA
I have the 2010 F 150 XLT with base stero + Sync.
So based off of your information above, I can tap into the fuse #28 which is the hot in start using the method I stated earlier and I should be just fine. Correct?
Fuse #28 says (radio Muting) in the cab and Fuse # 28 in the hood says upfitter 4. Which area is correct.
So based off of your information above, I can tap into the fuse #28 which is the hot in start using the method I stated earlier and I should be just fine. Correct?
Fuse #28 says (radio Muting) in the cab and Fuse # 28 in the hood says upfitter 4. Which area is correct.
Last edited by chavez1975; Dec 29, 2012 at 09:13 AM.
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From: Under the flightpath of old ORD 22R
You want hot in Run / Accessory, which is the blue wire in the harness you are unplugging from the audio control Module. It is pin #2.
- Hot in start means only hot when the key is in the start position ( engine cranking ).
If you want to do this the correct way, buy a conversion harness that plugs into the factory connector, and gives you all the wires you need labeled right there.
This plugs into the factory harness and provides the connections to the Medium speed CAN bus as well as the splices needed to the new head unit for power ( hot in run/accy start, etc ) speakers, steering wheel controls, etc. This will make things a lot easier with being wire challenged.
- Hot in start means only hot when the key is in the start position ( engine cranking ).
If you want to do this the correct way, buy a conversion harness that plugs into the factory connector, and gives you all the wires you need labeled right there.
This plugs into the factory harness and provides the connections to the Medium speed CAN bus as well as the splices needed to the new head unit for power ( hot in run/accy start, etc ) speakers, steering wheel controls, etc. This will make things a lot easier with being wire challenged.
