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Old 11-22-2020, 10:25 PM   #1
Junior Member
Brand: Thor Motor Coach
State: California
Posts: 4
THOR #20840
Jansen in cabin audio / VCR unit

I just purchased a 2015 Mercedes Sprint Citation SL. The Jansen unit in the cabin doesn’t work. A repairman pulled the unit out and checked out the fuses in the unit which were all good. When he checked the wiring that would normally bring power to the unit, he was not able to detect power. I called Thor’s technical department and the best they could do was to send me prints of the wiring harness for the coach which I cannot find wiring to the unit. I have checked the fuses in the panel under the rear closet and they are all good. Can anyone tell me if they have ever had this problem. This is my first time owning an RV and my first attempt in this Forum.

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Old 11-22-2020, 11:43 PM   #2
Senior Member
ducksface's Avatar
Brand: Thor Motor Coach
Model: 2018 24.1 AXISSIXxSIX
State: Arizona
Posts: 5,218
THOR #13932
Run power from a known good source.
If it works, it's the exisitng power line.
If it doesn't work, it's the radio head.
This is very elementary.
Are you sure your tech didn't do this already?
Below is a link to most of my modifications either accomplished or pending.

Click on my pictures then click the pop-up for a full screen zoomable picture.
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Old 11-23-2020, 12:03 AM   #3
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16ACE27's Avatar
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 9,718
THOR #7035
I suspect you mean Jensen radio. Is your house battery disconnect on?
Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad
2020 Chevy Colorado Z71 Trail Runner Alternate Toad
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