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stereoaz
stereoaz, Car Electronics Technician
Category: Car Electronics
Satisfied Customers: 113
Experience:  35 years in car audio,my shop won iasca world title ,custom fabrication,expert installer.
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What is with the phone mute on my concertclass radio

Customer Question

What is with the phone mute on my concertclass radio whenever I put my peterbilt truck in reverse?
JA: How old is the phone?
Customer: That's just it-there's no phone connected to the radio. I looked in the radio user manual and they give no explanation for this 'phone mute' foolishness whenever I shift into reverse and I'm trying to figure out how to get rid of it
JA: How long has this been going on? What troubleshooting have you tried?
Customer: Since I first got it in Sept.this year. I've tried everything I could think of and nothing gets rid of it. It's driving me crazy. If I touch the volume knob right after I shift into reverse it comes back on but that's annoying. It serves no purpose at all and I just want it gone
JA: Anything else you want the electronics expert to know before I connect you?
Customer: No I just hope they know what to do about this
Submitted: 9 months ago.
Category: Car Electronics
Expert:  Louie replied 9 months ago.

Hi, I’m Louie. Sorry you had to wait awhile but I’ll do my best to help.

Initially, is the "...concertclass radio..." factory installed or an aftermarket?