# Radio

**URL:** <https://community.cartalk.com/t/radio/50566>\
**Category:** Maintenance/Repairs\
**Tags:** radio, gmc, 3500\
**Created:** [June 19, 2010, 7:55pm UTC](https://community.cartalk.com/t/radio/50566 "2010-06-19T19:55:11Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![2sioux2](https://avatars.discourse-cdn.com/v4/letter/2/a88e4f/32.png) [@2sioux2](https://community.cartalk.com/u/2sioux2)\
**Post date:** [June 19, 2010, 7:55pm UTC](https://community.cartalk.com/t/radio/50566/1 "2010-06-19T19:55:11Z")

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my radio stops working after i shift into gear or shortly after. it then hums. i drive a 1989 350 chev. truck rv. the radio is new, because the factory one did the same. any suggestions  
  
 Phil

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**Author:** ![Cougar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cougar/32/21348_2.png) [@Cougar](https://community.cartalk.com/u/Cougar)\
**Post date:** [June 19, 2010, 8:33pm UTC](https://community.cartalk.com/t/radio/50566/2 "2010-06-19T20:33:09Z")

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It sounds like there is a intermittent power connection to the radio. Get a test light probe to check out the power circuit to the radio.