1973 c20 accesory power - The 1947 - Present Chevrolet & GMC Truck Message Board Network

setelec 73 · 06-27-2009, 10:55 PM

just installed a new radio in my truck, and it will not save my preset stations. Wondering if there is and ACC power switch or do i have have to just run a constant hot to it and remember to turn it off??

pokethesmot · 06-27-2009, 11:15 PM

mine did the same thing....just run a new wire but check ur fuse first just incase

babyJay · 06-27-2009, 11:24 PM

Most newer Head units need two power sources. One that is switched on when ignition is on, and one that is always hot. Check the diagram that came with the unit.

Longhorn321 · 06-27-2009, 11:30 PM

Quote:

Originally Posted by babyJay

Most newer Head units need two power sources. One that is switched on when ignition is on, and one that is always hot. Check the diagram that came with the unit.

**old Rusty C10** · 06-28-2009, 10:35 AM

check the wiring diagram usually yellow is constant power and red is to the accessories or visa versa

06-27-2009, 10:55 PM	#1
setelec 73 Registered User Join Date: Apr 2009 Location: Los Angeles, CA Posts: 78	1973 c20 accesory power just installed a new radio in my truck, and it will not save my preset stations. Wondering if there is and ACC power switch or do i have have to just run a constant hot to it and remember to turn it off?? __________________ 1973 3/4 Ton Chevy 454 1990 Ford Ranger 4.0 2002 Cadillac Deville

06-27-2009, 11:15 PM	#2
pokethesmot profeshinaly unimployed Join Date: Dec 2008 Location: hazlehurst, GA Posts: 1,232	Re: 1973 c20 accesory power mine did the same thing....just run a new wire but check ur fuse first just incase __________________ my ride click here my myspace "having mud flaps is like asking for a smaller trophy"

06-27-2009, 11:24 PM	#3
babyJay Arrived on a Pale Horse Join Date: Mar 2007 Location: SnagTown Indiana Posts: 2,524	Re: 1973 c20 accesory power Most newer Head units need two power sources. One that is switched on when ignition is on, and one that is always hot. Check the diagram that came with the unit. __________________ Jason 87 V30 350TBI/400 White w/Boss V-plow 89 R3500 CC SRW

06-28-2009, 10:35 AM	#5
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,310	Re: 1973 c20 accesory power check the wiring diagram usually yellow is constant power and red is to the accessories or visa versa __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!



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