{"id":85191,"date":"2023-06-13T04:11:48","date_gmt":"2023-06-13T11:11:48","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=85191"},"modified":"2023-08-07T18:04:22","modified_gmt":"2023-08-08T01:04:22","slug":"why-wont-my-radio-turn-on-in-my-car-what-you-need-to-know","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/why-wont-my-radio-turn-on-in-my-car-what-you-need-to-know\/","title":{"rendered":"Why Won\u2019t My Radio Turn On in My Car? What You Need to Know"},"content":{"rendered":"<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>\n\n\n<p>So, your car&rsquo;s radio is not working. Now what? It&rsquo;s time to learn what might&rsquo;ve happened and how a mechanic can get your tunes back on track. First things first, let&rsquo;s take a look at how they work to help you diagnose the problem better.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How Car Radios Work<\/h2>\n\n\n\n<p>Car radios are modern marvels filled with different features. For the traditional radio part, the car&rsquo;s antenna receives radio waves in the air broadcasted by a radio tower. The antenna then converts these waves into weak fluctuating electrical current. The current flows from the antenna, through the lead-in wire, and into the radio. After that, the radio amplifies the signal and forwards its own signal to the speakers. The speakers then translate the signal into audible sound. Modern car radios can also use bluetooth, aux cables, and USB readers as audio sources instead of just good old radio waves.<\/p>\n\n\n\n<p>Car radios do all this using a constant 12-volt charge that&rsquo;s drawn from the battery. This is to keep the radio&rsquo;s internal clock alive and to prevent the anti-theft lock from engaging.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/broken-car-radio-1024x683.jpg\" alt=\"image of a radio turned off\" class=\"wp-image-85269\" width=\"1024\" height=\"683\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/broken-car-radio-1024x683.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/broken-car-radio-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/broken-car-radio-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/broken-car-radio-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/broken-car-radio-1200x800.jpg 1200w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/broken-car-radio-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/broken-car-radio.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>Car radios can perform all its features by using a constant 12-volt charge that&rsquo;s drawn from the battery.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Ways Your Radio Might Have Stopped Working (and How a Mechanic Can Fix Them)<\/h2>\n\n\n\n<p>Modern radios and infotainment systems are complex machines, so there&rsquo;s a lot that can go wrong with them. For a majority of these problems, you&rsquo;ll want to have a certified mechanic take a look. Otherwise, you might accidentally damage the other electronic parts of your car.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Cut Audio<\/h3>\n\n\n\n<p>One of the most common problems is your radio&rsquo;s audio cutting off entirely. Cut audio has a couple of likely causes, and the difficulty of repair varies.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Blown Fuse<\/h4>\n\n\n\n<p>More likely than not, the issue is a blown fuse. Car radios have at least one fuse hooked up to protect them from power surges. If you replace the blown fuse, all should be well again. Make sure you replace it with the exact same fuse though. The amperage and size need to be the same. Never replace a blown fuse with a bigger one. Depending on the fuse, it could be a simple plug-and-play fix or a more complex job suited only for your mechanic.<\/p>\n\n\n\n<div id=\"article-search-widget\">\n<div class=\"cp-search\">\n<div align=\"center\">\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/w_auto,dpr_auto\/carparts\/logos\/badge_wordmark\/full_color\/CP_LOGO_COLOUR_RGB\" alt=\"CarParts.com\" width=\"300\" height=\"56\">\n<\/div>\n<form id=\"cpsearchform\" name=\"cpsearchform\" action=\"https:\/\/www.carparts.com\/search\" method=\"get\" target=\"_blank\" accept-charset=\"character_set\" aria-label=\"search CarParts.com\">\n    <input type=\"text\" class=\"keyword\" name=\"q\" placeholder=\"Search for parts on CarParts.com\" value=\"\" aria-label=\"Search CarParts.com\"><input type=\"submit\" class=\"btn-search\" value=\"Search\" aria-label=\"Search\">\n<\/form>\n<\/div>\n<\/div>\n\n\n\n<h4 class=\"wp-block-heading\">Bad Wiring<\/h4>\n\n\n\n<p>If you&rsquo;ve had after-market speakers or a radio installed in your car, some bad <a href=\"https:\/\/www.carparts.com\/radio-connector\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"wiring\">wiring<\/a> might have given out. Incorrectly <a href=\"https:\/\/www.carparts.com\/blog\/car-wiring\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"installed wiring\">installed wiring<\/a> can fail out of the blue if it isn&rsquo;t connected properly. The connections could snap or fail, causing the sound to give out. A licensed mechanic can locate the offending wire and attach it properly if this is the case.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Poor Reception<\/h3>\n\n\n\n<p>When your radio&rsquo;s AM and FM reception cuts off or sounds garbled, you can often blame poor reception. If reception is strong on other devices, the most likely culprit for this is a faulty antenna or lead-in cable. A mechanic can solve this by replacing and rewiring the offending piece of hardware.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Radio Hardware<\/h3>\n\n\n\n<p>The radio hardware itself can also be the problem. If the hardware fails, you or your mechanic will need to replace the unit.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Radio Turning Off and On Again or Experiencing Static<\/h3>\n\n\n\n<p>Malfunctioning diodes in your air conditioning (A\/C) system can cause your radio some trouble as well. If the compressor clutch coil disengages and a diode fails to suppress the resulting high-voltage spike, the radio might turn off and on again as a result. This will happen each time the spike hits. Alternatively, you might notice increased static over the speakers while the A\/C is on. A mechanic would need to replace the diode to stop the problem and prevent further damage to the car&rsquo;s other electronic components.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Display Not Appearing<\/h3>\n\n\n\n<p>Your radio&rsquo;s display might stop working even if the other indicator lights on the radio are functioning fine. This issue is probably due to the radio hardware failing or another faulty fuse that needs to be replaced. If the fuse is a surface-mount part, your mechanic might replace the defective fuse.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/car-radio-1024x683.jpg\" alt=\"driver pressing car display unit\" class=\"wp-image-85270\" width=\"1024\" height=\"683\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/car-radio-1024x683.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/car-radio-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/car-radio-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/car-radio-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/car-radio-1200x800.jpg 1200w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/car-radio-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/car-radio.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>A radio display not appearing might be probably due to another faulty fuse that needs to be replaced.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Anti-Theft Lock<\/h3>\n\n\n\n<p>What if your car&rsquo;s stereo won&rsquo;t turn on but it has power? Well, if your radio&rsquo;s constant supply of power from the battery is lost, whether from replacing the radio unit or your battery, you might trigger the anti-theft lock. This lock is programmed into certain radios to discourage theft by making the radio unusable once it&rsquo;s removed from the car.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>If the anti lock theft function is the reason, it will not work then the radio usually has some sort of ability to code or something to unlock it.<\/p><cite>&ndash;<a href=\"https:\/\/www.carparts.com\/blog\/author\/anthonyharlin\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Anthony Harlin, ASE Certified Master Automobile Technician\">Anthony Harlin, ASE Certified Master Automobile Technician<\/a><\/cite><\/blockquote>\n\n\n\n<p>Unfortunately, if you trigger it yourself, you&rsquo;ll need to hunt for the radio&rsquo;s security code. You can usually find it in the car&rsquo;s paperwork, but if you can&rsquo;t, you&rsquo;ll need to have it reset at the dealer. Make sure to ask for the new code if this happens.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Radio Interference<\/h3>\n\n\n\n<p>When the voltage in the powerline or antenna fluctuates, it can cause radio interference. This can come out as a whine that gets louder over the sound system as the engine speed increases. It&rsquo;s known as an alternator whine. Interference can also take the form of a raspy sound that changes with the speed of the engine. Either way, a mechanic can solve this interference by installing a radio choke or a filter capacitor in the radio&rsquo;s power feed wire.<\/p>\n\n\n\n<p>Any driving situation is better with a bit of music, at least for most people. It&rsquo;s hard to enjoy your drive if your car radio stopped working, but now you&rsquo;re better equipped to find out what&rsquo;s wrong and have it fixed.<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>So, your car&rsquo;s radio is not working. Now what? It&rsquo;s time to learn what might&rsquo;ve happened and how a mechanic&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/why-wont-my-radio-turn-on-in-my-car-what-you-need-to-know\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":85268,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[52,3759],"tags":[],"ppma_author":[2607,3742],"class_list":{"0":"post-85191","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-diy","8":"category-interior","9":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Why Won\u2019t My Radio Turn On in My Car? 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What happens if it goes haywire though?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/why-wont-my-radio-turn-on-in-my-car-what-you-need-to-know\/\" \/>\n<meta property=\"og:site_name\" content=\"In The Garage with CarParts.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/carpartscom\" \/>\n<meta property=\"article:published_time\" content=\"2023-06-13T11:11:48+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-08-08T01:04:22+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/06\/automotive-radio-unit.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1500\" \/>\n\t<meta property=\"og:image:height\" content=\"1000\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:site\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/why-wont-my-radio-turn-on-in-my-car-what-you-need-to-know\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/why-wont-my-radio-turn-on-in-my-car-what-you-need-to-know\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"CarParts.com Research Team\",\"jobTitle\":\"Expert Automotive Writer\",\"description\":\"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. 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