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


hit the arrow over or turn the knob one of the two

JBL MR-4 AM / FM... | Answered on Nov 07, 2013


Because of that moisture it may have fired the lighting connection inside the unit, does it produce and sound?

JBL MR-4 AM / FM... | Answered on Mar 21, 2011


Hi the CD drive is going bad thats the reason why its not pulling the CD, you should get the CD drive replace.

JBL MR-4 AM / FM... | Answered on Jul 19, 2010


i took my head unit face apart and got the volume control off, sprayed a little WD40 and it worked like a beauty!

JBL MR-4 AM / FM... | Answered on Jul 18, 2010


you can make one to fit where you want

JBL MR-4 AM / FM... | Answered on Jun 26, 2009


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..........

JBL MR-4 AM / FM... | Answered on Jun 01, 2009


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

JBL MR-4 AM / FM... | Answered on Feb 18, 2009


contact your installer of the spa they will determine what needs to be done as I dont have enough info to assit you

JBL MR-4 AM / FM... | Answered on Apr 02, 2006

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