Question about Cobra 148 GTL 120-Channels Base CB Radio

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What can stop the radio from coming on, when it has 12v.

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Bad fuse, dirty power switch contacts, corrosion of same as well. Burned out power filter inductor, Burned out resistor, etc.

Posted on Feb 19, 2012

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1 Answer

Radio and clock stop working


Check the fuses if they are good check the wiring in back of radio should have one wire that has 12v all the time and another with 12v only when you turn the car on the on position and a ground wire the rest should be for the speakers and normally the speaker wires have two of the same color wires going to each speaker also so radios have fuses on the back of the radio by the plug

Mar 11, 2015 | 2008 Jeep Commander

1 Answer

STEREO ETC STAYS ON EVEN AFTER TURNING IT OFF AND REMOVING THE KEY


It sounds like you have a constant 12V power supply wired to the radio instead of a switched 12V. If you've recently installed a new radio, check your wires again. There should be a 12V constant and a 12V switched. The switched 12V will turn the radio off, while the constant 12V is for keeping the clock and radio memory working.

Nov 07, 2014 | Honda Cars & Trucks

1 Answer

Acura rl 1997 radio stopped working.


its prob. the radio ck for 12v and ground to it

Jun 15, 2012 | Acura RL Cars & Trucks

1 Answer

Kicker zx1000.1 stopped working completely. I have 3 Kicker 10" cv subs hooked to it. The first time it shut off I turned the system off. When I turned it back on it worked for a few minutes and...


First check to see if your'e getting power to the amp by using a test light and touch the main power(12V battery) connector on the amp, test light should come on since it's constant 12v supply. Now turn on the radio and test the remote wire connector on the amp and you should have 12V(test light should come on). Also make sure that you have a good connection with your ground wire, check both connection points to make sure it's good. Now if you have power where your'e suppose to and when your'e suppose to and the amp does not power up, then it may be time for a new amp. Try wiggling the connections at the amp a bit, the solder may be cold/loose.

Jul 12, 2011 | Kicker Car Audio & Video

1 Answer

My dash lights and my radio stop workin when i was installing a new radio, how can i fix this?


sounds like you have a problem with the power supply. Check the fuse. if ok, remove the new radio and check the power connection to the radio. if you cut into a wire harnis to find a hot 12v connection, you may have severed the dash 12v supply or knocked it loose . Take it slow and retrace your steps, but first check the fuse panel. You may have shorted out a wire without knowing it when attempting the install. lift the pos. lead on you battery the next time you play with 12v.

Sep 18, 2010 | 1994 Jeep Cherokee Country

1 Answer

Yesterday my radio was working fine, and then this morning when i went to go to work it won't turn on. If you press the CD eject button the CD comes our or if you press the time button it shows the time.


There are two supplies to a car radio, 12volt ignition and 12v perm live.
sounds like you have lost the 12v igniton as only the basic functions opperate, check for fuse either on the fuse box, accessory fuse, (sometimes marked as 'radio') or on the back of the radio for an inline fuse.

Jul 09, 2009 | 2006 Jeep Grand Cherokee

2 Answers

TRC520 CB wont power up


Hello, First of all you only have the Power wire Red, and the ground wire Black to connect for 12v DC to power the unit. If you memory power it is usually connected to a constant power source such as the cigarette lighter or continuous 12V dc powersupply off of the battery. These are the only connections that should be connected to provide power. Since the unit will not turn on I suspect that the CB's power supply and regulator have been blown. Another possible choice is that the radio was working and someone removed the antenna cable and the the RF power amplifier malfunctioned taking the power supply and regulator with it. To solve this problem, check the voltages on the wires before connecting them to the radio (these should be the 12 volt power off of the radio circuit, and the 12 volt power off of the continuous 12V connector (or the cigarette lighter). These voltages should read 12V. Connect the CB with it turned off and measure the voltages (should be 12V) Turn the radio on and check the voltages (should be a little less than 12V) If the radio does not come on then the internal power supply of the radio might be defective (In this case I would advise taking the CB to a qualified radio repair shop) I hope this helps Thank you, Shuttle83 http://www.electron-age-technologies-llc.com

Jun 11, 2009 | Radio Shack TRC-521 CB Radio

1 Answer

Radio wiring harness color codes for 2004 Jeep GC


This is for a 2002 cherokee:

RADIO 12V - red/white
RADIO GROUND - black
RADIO SWITCH - white/red

May 16, 2009 | Cherokee Car Audio & Video

1 Answer

Wont come on


What won't come on? Is this a radio that won't come on or an amplifier? If it is a radio not turning on, check all radio fuses (both at fuse panel and under hood). If these are all good and the radio still doesn't turn on, then you'll need to remove the radio and check power behind it.
If you have an amplifier that isn't turning on, you need to first check power on the fused power wire coming from the battery. You can use a 12 volt test light (available from an auto parts store) to check for power at the amplifier power connections. Test the 12v constant power and then the 12v remote turn-on power. If either of these are out, check fuses on the main and make sure the radio is delivering 12 remote turn-on power. If you are still having difficulty, please see a professional car stereo shop. They will be able to diagnose the problem usually in less than 1 hour for a small troubleshooting fee. Hope this was helpful.

Sep 28, 2008 | Pioneer Car Audio & Video

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