mercedes c320 2003 radio wiring diagram

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kc_457

Member - Posts: 1

Joined: December 23, 2007

Location: Kansas, United States

Posted: May 08, 2009 at 5:30 PM / IP Logged

Hi. Can you help me get the wiring diagram for the radio? I cannot find the switched power wire. What solution are there for this? Thanks

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slab42

Copper - Posts: 56

Joined: March 18, 2003

Location: United States

Posted: May 08, 2009 at 6:38 PM / IP Logged

What are you installing? If you don't need much current, you could go to the cig lighter for switched power, or if that is not switched, go to the ign. harness. If you need a little more current, use either of those sources to trip a relay and get power at one of the main power wires under the driver's side dash or go directly to the battery.

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howie ll

Pot Metal - Posts: 16,466

Joined: January 09, 2007

Location: United Kingdom

Posted: May 09, 2009 at 1:57 AM / IP Logged

They never had an ACC feed after the late 90s, the fatory radios switch via data. Go to the ciggie lighter, or if you need high power, fire a relay and divert a feed from battery or fuse box entry, also a stud under one of the front carpets where the main battery feed goes through to the engine bay.

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mercedes c320 2003 radio wiring diagram

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