Top 20 JBL MR-4 AM / FM / CD 180 Watts Marine Receiver Questions & Answers

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No sound in speakers, display says sub w? subwoofer?

hit the arrow over or turn the knob one of the two
10/21/2012 8:34:39 PM • JBL MR-4 AM / FM... • 69 views • 0 helpful votes
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2answers

I have a CD / Radio in a Jacuzzi. I opened the

Because of that moisture it may have fired the lighting connection inside the unit, does it produce and sound?
6/7/2010 10:32:22 AM • JBL MR-4 AM / FM... • 1,423 views • 0 helpful votes
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Have MR-4. Radio works

Hi the CD drive is going bad thats the reason why its not pulling the CD, you should get the CD drive replace.
7/19/2010 1:22:42 PM • JBL MR-4 AM / FM... • 39 views • 1 helpful votes
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DEH P4901B in place of a JBL MR-4 in my boat

you can make one to fit where you want
6/22/2009 2:45:11 AM • JBL MR-4 AM / FM... • 363 views • 0 helpful votes
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Volume dial decreases volume if turned either way

i took my head unit face apart and got the volume control off, sprayed a little WD40 and it worked like a beauty!
6/3/2009 3:49:23 PM • JBL MR-4 AM / FM... • 491 views • 1 helpful votes
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Won't read the CD's now

have you ever cleaned the lazer lens? goto any CD store and pick up a CD cleaner CD, it is a CD that you place a drop of cleaner on the brushes on the bottom of place it in the CD player and let it play, it will clean the lens that reads the cd, you might have to run it a few times if you have never done this before. that should fix the problem. the CD cleaners are not that expansive, can find them under $20...... hope this helps you..........
6/1/2009 1:29:28 PM • JBL MR-4 AM / FM... • 275 views • 0 helpful votes
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Auxillery in question

yes you can hook up your mp3 to an aux input on a stereo not sure what you mean by converter typically it is done through a 3.5mm - 3.5mm standard audio cable. and in order to do this your reciever must have an aux input of course and if so then you can toggle the mode of input by pressing the Mode or button that switches from radio to cd etc or consult with your users manual to find out how to switch and if aux input method is supported
2/15/2009 5:48:26 PM • JBL MR-4 AM / FM... • 1,098 views • 0 helpful votes
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Problem with compact dic player

contact your installer of the spa they will determine what needs to be done as I dont have enough info to assit you
3/26/2006 4:36:10 AM • JBL MR-4 AM / FM... • 110 views • 0 helpful votes
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I have an 4000 watt 6 channel lanzer amp goes into protection mode as soon as it powers on

Could be a bad ground i wish u lived around me I run my own audio installation business
5/25/2022 6:17:18 PM • JBL Car Audio &... • 88 views • 0 helpful votes
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I have a JBL 6-disc changer2002 Camry. CDs won't eject. Matter fact when CD option is chosen CD player does not even work at all. Any helpful information would be greatly appreciated!

It sounds like you have a disc stuck and it's overriding any commands. I would put the key to acc. Then I would unplug the cd changer from the back of changer and after a min or 2 plug it back in as you hold down on the eject button
12/8/2021 6:26:51 PM • JBL Car Audio &... • 269 views • 0 helpful votes
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How do I advance my jbl 3 disc cd player in my 2008 SOlara

Page 168 of the manual onwards.

2008 Toyota Solara Owners Manual and Warranty - Toyota ...

www.toyota.com > owners > resources > solara > 2008
Find everything you need to know about your 2008 Toyota Solara in the owners manual from Toyota Owners. ..
1/31/2021 2:14:16 PM • JBL Car Audio &... • 61 views • 0 helpful votes
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Mh JBL MR-5 on my boat does not work anymore. Where to replace or how to fix?

No user serviceable parts! If not working just replace!
5/14/2020 3:44:42 PM • JBL Car Audio &... • 110 views • 0 helpful votes
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Jbl a3001 goes into protect mode when bass hits. Wrkd then just stopped. Amazon replaced the amp with a new one, new wire, loc, rca, grnd locatn. No dice. Ideas?

Bad or shorted voice coil on sub maybe. If you have two subs try them one at a time to see if it goes into protect mode. Whatever sub does it is bad.
10/4/2016 9:19:14 AM • JBL Car Audio &... • 1,555 views • 0 helpful votes
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Advice for car speakers for my pioneer player DEH1590UB

It is very dependent on your vehicle and whether you are using the built-in amp of the head unit or a separate amp. Ideally, I would recommend a good 6.5" component set.
4/5/2016 1:38:21 PM • JBL Car Audio &... • 341 views • 0 helpful votes
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Why does my inline fuses keep blowing on a jbl gto 14001 amp

You need to calculate the amount of amps being driven through that fuse + the amount you need to feed the amplifier. In my Volvo S40 and V70 I had no problems driving an amplifier of the rear power connector, but on my Honda S2000 however I had to create a different connection all the way to the battery line for a smaller amp (connection as in cables, condensers/filters and fuses).
2/18/2016 8:26:31 AM • JBL Car Audio &... • 337 views • 0 helpful votes
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Tell me how good of an amp this really is? Jbl grand touring gto1201.1model 2 not sure on the watts or class..

single channel about 1kW output power. About $250 when new. Specs here http://www.crutchfield.com/S-dVhyYWWFkBd/p_115GTO1201/JBL-Grand-Touring-Series-GTO1201-1-II.html
8/26/2015 8:15:37 PM • JBL Car Audio &... • 991 views • 0 helpful votes
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