Power wiring question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**7D2N** · 07-26-2011, 10:09 PM

I am installing a Pioneer Premier stereo in my Blazer, I believe I have the speaker wires and amp/antenna figured out, I have 3 others, Red, Black and Yellow. Red power, black ground and for yellow I'm not sure. Hope someone can shed some light on this.

Thanks
7D2N

SWB4x4 · 07-26-2011, 10:15 PM

yellow is your constant power keeps the clock memory etc working...the red power is from the ignition and turns on when the key is on the yellow always has power.

**7D2N** · 07-27-2011, 10:23 PM

SWB4X4,
Thanks for the help, powered up and all 4 speakers working. Do you know if an amp has to have its own power source from battery? what gauge of wire to power a 300wt amp? I'm trying to get the system working right (never did work good) stereo wiring was rough and I mean rough.

Thank you for you help.

7D2N

SWB4x4 · 07-28-2011, 12:20 AM

Quote:

Originally Posted by 7D2N

SWB4X4,
Thanks for the help, powered up and all 4 speakers working. Do you know if an amp has to have its own power source from battery? what gauge of wire to power a 300wt amp? I'm trying to get the system working right (never did work good) stereo wiring was rough and I mean rough.

Thank you for you help.

7D2N

No Problem....and yes you will need a seperate power wire and ground for the amp you should be fine with 10 gauge for a 300 watt amp or you could always use a heavier gauge for future upgrades.... the blue wire off the back of your deck will need to go to the amp as well for the remote turnon. goodluck post some pics when done!

**7D2N** · 07-31-2011, 12:00 PM

SWB4X4, Thanks again for your response and I'm on my way now. Because I like pictures here is the starting point of reassembly, when Its back together I'll post a few more.

Thanks
7D2N

tubbedII · 08-01-2011, 11:41 AM

One tip...run the rca's on one side and the power cords on the other. Makes for more wire routing/hiding, but lessens the risk of alternator whine through the speakers. Also, make sure you run a good ground on the amp, if you can get it on the frame, that'd be best.

07-26-2011, 10:09 PM	#1
7D2N Senior Member Join Date: Aug 2007 Location: Morgan County Utah Posts: 662	Power wiring question I am installing a Pioneer Premier stereo in my Blazer, I believe I have the speaker wires and amp/antenna figured out, I have 3 others, Red, Black and Yellow. Red power, black ground and for yellow I'm not sure. Hope someone can shed some light on this. Thanks 7D2N

07-26-2011, 10:15 PM	#2
SWB4x4 Registered User Join Date: Jan 2010 Location: Nor*Cal CALIFORNIA Posts: 157	Re: Power wiring question yellow is your constant power keeps the clock memory etc working...the red power is from the ignition and turns on when the key is on the yellow always has power. __________________ J.T. 1972 SWB 4X4 on 35"s with 6" lift all around 3/4 ton running gear with high steer and 4.88s 350/th350. SOON TO BE DONE:2" higher in front 37"s,LSX Swap,Hugger Orange & White Paint Scheme,Air Conditioning,Power Windows & Locks,Complete Gauge Kit,Tank Relocation,Double Din Nav with full Audio System. My Build Thread http://67-72chevytrucks.com/vboard/s...=1#post4169140

07-27-2011, 10:23 PM	#3
7D2N Senior Member Join Date: Aug 2007 Location: Morgan County Utah Posts: 662	Re: Power wiring question SWB4X4, Thanks for the help, powered up and all 4 speakers working. Do you know if an amp has to have its own power source from battery? what gauge of wire to power a 300wt amp? I'm trying to get the system working right (never did work good) stereo wiring was rough and I mean rough. Thank you for you help. 7D2N

07-31-2011, 12:00 PM	#5
7D2N Senior Member Join Date: Aug 2007 Location: Morgan County Utah Posts: 662	Re: Power wiring question SWB4X4, Thanks again for your response and I'm on my way now. Because I like pictures here is the starting point of reassembly, when Its back together I'll post a few more. Thanks 7D2N Attached Images

08-01-2011, 11:41 AM	#6
tubbedII needs more $$$ Join Date: Mar 2004 Location: Sacramento Posts: 1,936	Re: Power wiring question One tip...run the rca's on one side and the power cords on the other. Makes for more wire routing/hiding, but lessens the risk of alternator whine through the speakers. Also, make sure you run a good ground on the amp, if you can get it on the frame, that'd be best. __________________ 1970 2wd Blazer



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